Harrison v. South Carolina Department of Mental Health ( 2015 )


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  •                             UNPUBLISHED
    UNITED STATES COURT OF APPEALS
    FOR THE FOURTH CIRCUIT
    No. 14-2096
    BARRY A. HARRISON; WESLEY T. ROACH; DWAYNE M. HAWKINS,
    Plaintiffs - Appellants,
    v.
    SOUTH CAROLINA DEPARTMENT OF MENTAL HEALTH,
    Defendant - Appellee.
    Appeal from the United States District Court for the District of
    South Carolina, at Columbia.    Joseph F. Anderson, Jr., Senior
    District Judge. (3:12-cv-01754-JFA)
    Argued:   May 12, 2015                     Decided:   July 7, 2015
    Before SHEDD, DUNCAN, and HARRIS, Circuit Judges.
    Vacated and remanded by unpublished opinion. Judge Harris wrote
    the opinion, in which Judge Shedd and Judge Duncan joined.
    ARGUED:   James Paul Porter, J. LEWIS CROMER & ASSOCIATES, LLC,
    Columbia, South Carolina, for Appellants.       Vance J. Bettis,
    GIGNILLIAT, SAVITZ & BETTIS, LLP, Columbia, South Carolina, for
    Appellee. ON BRIEF: James Lewis Mann Cromer, J. LEWIS CROMER &
    ASSOCIATES, LLC, Columbia, South Carolina, for Appellants.
    Unpublished opinions are not binding precedent in this circuit.
    PAMELA HARRIS, Circuit Judge:
    Barry   Harrison    and     two     colleagues      appeal    the     grant   of
    summary     judgment       to     their     employer,       the      South     Carolina
    Department of Mental Health (“DMH” or “the Department”), on race
    discrimination and retaliation claims under Title VII of the
    Civil     Rights    Act    of     1964.          Harrison    and     his     colleagues
    (collectively, “plaintiffs”) settled a prior race discrimination
    suit against the Department in 2010.                    They now allege that a
    number of actions taken by DMH since then — including refusing
    to   consider      them   for     job     assignments    and      giving     raises   to
    similarly situated DMH employees but not to them — constitute
    discrimination on the basis of their race and retaliation for
    their prior lawsuit.            While we affirm the district court’s grant
    of summary judgment to DMH in most respects, we remand certain
    claims    related    to    the    challenged       raises    for    further     factual
    development.
    I.
    A.
    Barry     Harrison,        Wesley     Roach,    and    Dwayne        Hawkins    are
    maintenance workers for the South Carolina Department of Mental
    Health.     Each has worked for DMH for approximately thirty years
    and holds the title Trade Specialist IV (“TS-IV”), with “IV”
    indicating rank.          Harrison, Roach, and Hawkins are generalists,
    2
    performing    painting,         carpentry,          electrical,      and   plumbing      work
    for the Building Maintenance section of DMH’s Physical Plant
    Services department as needed.
    In 2009, Harrison, Roach, and Hawkins, who are black, filed
    a lawsuit accusing DMH of discriminating against them on the
    basis of their race in their pay and in failing to promote them
    (the “2009 lawsuit”).              The parties agreed to settle the suit on
    December     30,    2010.           The    settlement         agreement         (the    “2010
    settlement”) called for DMH to make two forms of payments to
    Harrison,    Roach,       and   Hawkins.            First,    DMH    agreed      to    make    a
    single     $100,000       lump-sum       payment       that    was    to    be    split       by
    Harrison, Roach, and Hawkins after they paid their attorneys’
    fees   and   costs.         Second,       DMH       agreed    to    increase     the    men’s
    salaries     by    $4,000    per     year,      pending       approval     by    the    South
    Carolina Budget and Control Board’s Office of Human Resources.
    This increase was made retroactively effective from 2006, and
    will extend until 2016 — more specifically, until the January
    31, 2016, date on which the men agreed to resign from their jobs
    with DMH.
    The 2010 settlement did not, however, mark the end of these
    workers’     concerns       about     racial         discrimination        at    DMH.         In
    response to a budgetary shortfall, DMH’s Physical Plant Services
    department, where the plaintiffs work, underwent a significant
    reorganization       in     July    of    2011.        DMH    consolidated        its     four
    3
    existing maintenance shops into two, and gave many employees new
    responsibilities         or    transferred      them   to    different           locations.
    Specifically,      the        Department     transferred         two        of       the     four
    supervisors of its pre-consolidation maintenance shops, all of
    whom    were    white,    into    the   supervisor      positions            for       the    two
    consolidated shops.             The two remaining shop supervisors were
    then    given    different       supervisory       roles,     one       as       a    building
    manager    and    the    other    as    a   supervisor      at     an       energy         plant.
    Harrison,      Roach,    and    Hawkins     testified       that    they         would       have
    applied    for    any    of    these    four    positions     had       DMH          made    them
    available to applicants.
    While the four maintenance shop supervisors had a higher
    rank than the plaintiffs, the plaintiffs claim that DMH also
    officially or unofficially promoted three white employees with
    the same TS-IV position and rank as them: one who was made a
    preventive maintenance supervisor in the heating, ventilating,
    and air conditioning unit; another who took on new supervisory
    responsibilities; and a third who became a supervisor over the
    plumbing unit.          According to the plaintiffs, the first two of
    these     “promotions”          were     granted       without          a        competitive
    application process; the third, they say, was advertised as open
    only to current members of the plumbing unit, which they claim
    unfairly excluded general maintenance workers who nevertheless
    had extensive plumbing experience, such as themselves.                                However,
    4
    the first two of the alleged promotions did not come with an
    increase in pay or rank, and the plaintiffs admit that they
    never actually applied for the position in the plumbing unit, or
    spoke to their human resources manager about whether they could
    apply.
    In September 2011, less than a year after the settlement of
    the 2009 lawsuit, DMH gave salary raises to all TS-IVs with
    fifteen or more years of experience except for Harrison, Roach,
    and Hawkins (the “September 2011 raises”).               It is undisputed
    that this raise was based at least in part on a “compression”
    study DMH had undertaken before the 2010 settlement, showing
    that the salaries of certain experienced employees, including
    TS-IVs, were lagging behind statewide averages for comparable
    workers.        According to DMH, the three plaintiffs were excluded
    because the $4,000 annual salary adjustment they received as
    part of the 2010 settlement was, in effect, a compression-based
    raise itself, so that a second raise would be redundant.                    DMH
    managers    involved     with   authorizing   the   September   2011   raises
    testified that the salary adjustment given to Harrison, Roach,
    and Hawkins was a benchmark and “accelerant” for the 2011 raises
    given to other TS-IVs.          Harrison, Roach, and Hawkins, however,
    deny     that    they   understood   the   salary    adjustment   to   be    a
    correction for salary compression.            The text of the settlement
    agreement makes no reference to a compression study, and does
    5
    not explain the nature of the $4,000-per-year adjustment or how
    the figure was calculated.
    The plaintiffs now allege that these raises were allocated
    in   a   discriminatory    and     retaliatory           manner,   and    that   they
    produced a new pay imbalance among TS-IVs.                     Using salary charts
    that DMH provided in discovery, they calculate that in 2012,
    Harrison, Roach, and Hawkins were paid on average $950 less than
    white    TS-IVs   with   comparable       experience,       and    $160   less   than
    other black TS-IVs.       In 2013, they find, black TS-IVs were paid
    on average $1,000 a year less than white TS-IVs, and Harrison,
    Roach, and Hawkins were paid $1,100 less than white TS-IVs and
    $100 less than other black TS-IVs.
    B.
    Claiming that in these and other matters DMH discriminated
    against them on the basis of race and retaliated against them
    for bringing their 2009 lawsuit, Harrison, Roach, and Hawkins
    brought   an   action    under    Title       VII   in   the   District    of    South
    Carolina in June 2012.           The plaintiffs amended their complaint
    in December 2013 in order to incorporate events that occurred
    after filing.       DMH moved for summary judgment, and in August
    2014, a magistrate judge filed a report and recommendation that
    summary judgment be granted to DMH on both the discrimination
    and retaliation claims.
    6
    The magistrate judge agreed with the plaintiffs that they
    had administratively exhausted their Title VII claims, including
    their disparate pay claims, by adequately presenting them to the
    Equal Employment Opportunity Commission (“EEOC”).                                But on the
    merits,    the       magistrate      judge   concluded            that    the    plaintiffs’
    claims    failed,       whether      considered     under         the    so-called      direct
    proof method or under the burden-shifting framework set out in
    McDonnell Douglas Corp. v. Green, 
    411 U.S. 792
     (1973).
    As    to    the     September       2011     raises,         the    magistrate       judge
    determined       that    the     $4,000-per-year         adjustment            provided       the
    plaintiffs      by    the    2010    settlement        was    in    fact    a    compression
    raise,    and    that    the     three    plaintiffs         were       excluded      from    the
    round    of     compression       raises     awarded         in    September       2011      only
    because they already had received such raises.                                 Moreover, the
    magistrate       judge      noted,    some   of    the       TS-IVs      who    did    receive
    raises    in    2011     were    black.      As    a    result,          according     to     the
    magistrate judge, the plaintiffs had not made out a triable case
    that denial of the September 2011 raises was either retaliatory
    or discriminatory.
    The       magistrate       judge    similarly       rejected         the    plaintiffs’
    claim of pay disparities based on race and retaliation following
    the September 2011 raises.                 Those claims, the magistrate judge
    determined, rested on inadequate data concerning historical wage
    7
    payments, based on the plaintiffs’ own calculations and offered
    without the necessary context.
    None of the plaintiffs’ other allegations presented close
    questions, according to the magistrate judge.                         The allegations
    related     to   the     restructuring        of    the   Physical     Plant   Services
    department, the magistrate judge reasoned, should be treated as
    “failure to promote” claims, which require a plaintiff to show
    that there was an “open” position for which he qualified but was
    not selected.            The reshuffling of the four pre-consolidation
    maintenance shop supervisors into different supervisory roles,
    on the other hand, amounted to lateral transfers rather than the
    filling of “open” positions.                  Likewise, as to the plaintiffs’
    allegations           that     they     were        unlawfully        excluded        from
    consideration for other positions, the magistrate judge found
    either    that     the    position     in   question      was   not    an    opening    or
    promotion, that the plaintiffs had failed to attempt to apply,
    or   that    the      plaintiffs      could       not   establish     that   they     were
    qualified.       Finally, the magistrate judge found that none of the
    other DMH actions of which the plaintiffs complained rose to the
    level of a change in the terms of employment or a “materially
    adverse” action, as required to state a claim for discrimination
    or retaliation under Title VII.
    In September 2014, the district court issued an opinion
    responding       to      the   plaintiffs’         specific     objections       to    the
    8
    magistrate judge’s report and affirming the magistrate judge’s
    reasoning on each point.          The district court then adopted the
    magistrate judge’s report and recommendation in full and granted
    summary judgment to DMH on all claims.               This appeal followed.
    II.
    We review the district court’s grant of summary judgment de
    novo, and we view the facts in the light most favorable to the
    plaintiffs, as the non-movants.           See Stuart v. Camnitz, 
    774 F.3d 238
    , 244 (4th Cir. 2014).
    Title VII prohibits employment discrimination on the basis
    of an employee’s membership in a protected class and retaliation
    based   on   an   employee’s    opposition      to    “any    practice     made   []
    unlawful” by Title VII, including participation in a Title VII
    “investigation,        proceeding,    or        hearing.”             42    U.S.C.
    §§ 2000e-2,-3.     Whereas the types of employment actions that may
    be challenged in a discrimination suit are limited in kind by
    the text of § 2000e–2(a) to those affecting the “compensation,
    terms, conditions, or privileges of employment,” any “materially
    adverse” employment action — one that could have “dissuaded a
    reasonable    worker     from    making    or    supporting       a    charge     of
    discrimination”      —   is     actionable      in     a     retaliation     suit.
    Burlington N. & Santa Fe Ry. Co. v. White, 
    548 U.S. 53
    , 68
    (2006).
    9
    On appeal, the plaintiffs contend that the district court
    erred in granting summary judgment to DMH because they have made
    out a triable case of both these forms of Title VII violations,
    primarily in connection with raises, wages, and promotions.                                 For
    the    reasons       given    below,    we    affirm      the     district      court      with
    respect      to      most    of   the   plaintiffs’            claims    but    remand      for
    additional        fact-finding      regarding       claims       related       to   the    2011
    raises and subsequent pay disparities.
    A.
    We begin with the many respects in which we affirm the
    district court’s decision.                 As described above, the plaintiffs
    have challenged a series of personnel decisions, alleging that
    DMH    failed     to    promote    them      or    to    consider       them   for   various
    positions in violation of Title VII.                     We agree with the district
    court that the plaintiffs have failed to make out a case of
    either discrimination or retaliation in connection with those
    decisions, and that DMH is entitled to summary judgment on the
    claims.
    As the district court explained, many of the positions for
    which    the      plaintiffs      allege     they       were    passed    over      were    not
    “open” positions, as required to show disparate treatment in
    promotions.          See Evans v. Techs. Applications & Serv. Co., 
    80 F.3d 954
    , 959 (4th Cir. 1996); see also McDonnell Douglas, 
    411 U.S. at 802
         (addressing      rehiring         of    discharged       employees).
    10
    Instead, the unrefuted evidence shows that the personnel actions
    in     question       were    lateral      transfers      necessitated        by       the
    restructuring     of     the    Physical     Plant     Services       department,       in
    which existing shop supervisors, senior to plaintiffs, remained
    shop    supervisors      or    assumed     new   supervisory      roles.          As    the
    district      court    held    and   the    magistrate        judge    explained        in
    detail, these lateral transfers cannot give rise to a failure to
    promote claim.
    With respect to the supervisory job in the plumbing unit,
    we   again    agree    with    the   district     court   that    plaintiffs           have
    failed to make out a case.            It is undisputed that the plaintiffs
    did not apply or attempt to apply for that position, and that is
    enough to defeat their claims as a matter of law.                      See Evans, 
    80 F.3d at 959
     (plaintiff must have applied or “sought to apply”
    for position to make out claim under Title VII).                        And we agree
    with the district court that the plaintiffs have failed to show
    that    the   grant     of    additional     responsibilities          to   two    other
    employees      constituted       promotions       or    the     filling      of        open
    positions.
    Finally, we agree with the district court that on the facts
    alleged in this case, none of the other actions of which the
    plaintiffs complain, unrelated to promotions or to the pay and
    raise issues we turn to next, affect the “terms, conditions, or
    status of employment” as required to make out a discrimination
    11
    claim under Title VII, or constitute the kind of “materially
    adverse” action sufficient to give rise to a retaliation claim.
    B.
    We    turn   now    to   the     September            2011    raises,          and   to    the
    plaintiffs’ retaliation claim in connection with those raises.
    According      to    the    plaintiffs,           by    awarding      the        September        2011
    raises to every TS-IV employee other than the three of them, DMH
    retaliated against them for bringing their earlier 2009 race-
    discrimination suit against the Department.                             On this claim, an
    award    of    summary      judgment     to       DMH    was    premature,          because        the
    issue    cannot      be    decided     as    a     matter       of    law    without         further
    factual development regarding the 2010 settlement.
    This is an unusual case, in that most of the facts required
    to make out a retaliation claim are not in dispute.                                           First,
    there is no question that in bringing their 2009 lawsuit against
    DMH for failure to promote and pay discrimination based on race,
    the   plaintiffs        engaged     in   exactly         the     kind       of    activity        that
    Title    VII    protects      against        a    retaliatory          response.             See    42
    U.S.C. § 2000e-3 (protected activity includes participation in a
    Title    VII    “investigation,          proceeding,            or    hearing”);         Price      v.
    Thompson, 
    380 F.3d 209
    , 212 (4th Cir. 2004); see also Gilbert v.
    Napolitano,       
    670 F.3d 258
    ,       263       (D.C.    Cir.     2012)      (“[B]ringing
    discrimination            charges    undoubtedly              qualifies           as     protected
    activity.”).         Second, DMH admits that the 2010 settlement of
    12
    that lawsuit is the reason that the plaintiffs did not receive
    the September 2011 raises.         Indeed, that is the whole theory of
    DMH’s   defense    on    this    claim:    that   because   the     plaintiffs
    received pay adjustments as a result of their 2009 litigation
    against the Department, they were not given additional raises in
    2011.    That     is    enough   to   satisfy     the   “but-for”    causation
    required of a retaliation claim.            See Univ. of Texas Sw. Med.
    Ctr. v. Nassar, 
    133 S. Ct. 2517
    , 2533 (2013).               And finally, it
    is clear that if DMH deprived Harrison, Roach, and Hawkins in
    2011 of a raise given to all other similarly situated employees,
    then that would be a “materially adverse” employment action for
    purposes of Title VII’s retaliation provision.               See Burlington
    Northern, 
    548 U.S. at 68
     (action taken in response to protected
    activity constitutes prohibited retaliation if it is “materially
    adverse” in that it could have “dissuaded a reasonable worker
    from making or supporting a charge of discrimination”).
    As the case comes to us now, then, the key question is
    whether Harrison, Roach, and Hawkins actually were deprived of
    the September 2011 raises, or whether, as DMH argues, they in
    fact received the September 2011 raises, in the form of the pay
    adjustments that were part of the 2010 settlement.                  It is only
    with the benefit of appellate briefing and argument that the
    critical nature of that question becomes clear.                As a result,
    what turns out to be a core factual dispute about the nature of
    13
    the parties’ 2010 settlement agreement was never squarely joined
    in the proceedings below.
    On    the   one   hand,   it   appears      to   be   undisputed   that   the
    September 2011 raises for the plaintiffs’ fellow TS-IVs were
    prompted    at   least    in   part       by   long-standing      DMH   concerns,
    predating the 2009 lawsuit, regarding “salary compression,” or a
    lack of differentiation between the salaries of experienced and
    inexperienced      employees        that       left    experienced      employees
    undercompensated relative to statewide averages.                   And multiple
    DMH managers testified that the $4,000 annual salary adjustment
    received by the plaintiffs pursuant to their 2010 settlement
    also was designed to correct for salary compression, and was
    thus effectively an early version of the same compression-based
    raises that other TS-IV employees received in September 2011.
    On the other hand, the plaintiffs insist that they did not
    understand the settlement agreement that concluded their 2009
    lawsuit    to    incorporate        pay    raises     adjusting      for   salary
    compression.      In his deposition, Harrison expressly denied that
    the pay adjustment provided for in the settlement agreement was
    the equivalent of the compression-based September 2011 raises.
    And the language of the settlement agreement describes neither
    the nature of the annual salary adjustments nor the way in which
    the $4,000 figure was calculated, shedding no light on whether
    $4,000 per year over ten years represents a compression-based
    14
    adjustment, as DMH would have it, or simply the price DMH was
    willing to pay in exchange for settling each plaintiff’s 2009
    race-discrimination claim. 1
    We do not think that the critical question of whether the
    parties’    2010   settlement   agreement      effectively   granted    the
    plaintiffs the same compression-based raise that other employees
    received in September 2011 can be resolved as a matter of law on
    the record as it now stands.        The interpretation of settlement
    agreements is governed by general principles of contract law.
    See Ohio Valley Envtl. Coal. v. Aracoma Coal Co., 
    556 F.3d 177
    ,
    211 (4th Cir. 2009); Pee Dee Stores, Inc. v. Doyle, 
    672 S.E.2d 799
    , 802 (S.C. Ct. App. 2008).          Application of those principles
    requires evidence that is missing from this record — evidence
    contemporaneous    to   the   signing    of   the   settlement   agreement,
    1   The relevant portion of the settlement agreement reads:
    Subject to approval by the South Carolina Budget and
    Control Board’s Office of Human Resources, SCDMH will
    increase each of Plaintiff’s current salaries by Four
    Thousand Dollars ($4,000) annually, retroactive to
    June 2, 2006, and will pay each of Plaintiffs backpay
    associated with the retroactive salary increase, less
    applicable    taxes,    employee    contributions  to
    retirement, and other required withholding. . . . If
    the South Carolina Budget and Control Board’s Office
    of Human Resources approves the retroactive salary
    increases authorized by this paragraph, SCDMH will
    make required employer contributions to the South
    Carolina Retirement System on behalf of each of
    Plaintiffs to account for the retroactive adjustment
    in Plaintiffs’ respective salaries. J.A. 174.
    15
    bearing on both parties’ understanding of its terms.                                   DMH has
    presented       deposition         testimony       regarding            the     Department’s
    current view of what was intended in 2010, when the settlement
    agreement was negotiated.                 But the DMH managers who testified
    provided       no    evidence      that     this       view       was     memorialized         or
    communicated        at    that     time,    or     that     it     was       shared    by     the
    plaintiffs.         Indeed, with candor that we appreciate, DMH’s able
    lawyer conceded at argument that there is no evidence in the
    present record indicating that the plaintiffs understood the pay
    adjustments         provided       in      their       settlement             agreement        as
    compression-based raises.
    Accordingly,        we    believe    there      is     a    need      for     additional
    factual       development        regarding       the    2010       settlement’s          salary
    adjustment and its relationship, if any, to the September 2011
    raises.       On remand, DMH will have the opportunity to present
    evidence contemporaneous to the settlement agreement regarding
    how    the    $4,000      annual    salary       adjustment        was       calculated       and
    showing      that   the    adjustment      was     understood           by    both    sides    to
    address salary compression; the plaintiffs, for their part, may
    present evidence that in 2010 the parties did not mutually agree
    that    the    salary      adjustment       provided        for     by       the     settlement
    16
    agreement was in the nature of a compression-based raise. 2                         If
    after further development the issue is ripe for decision as a
    matter of law, then the district court of course may grant a
    subsequent summary judgment motion.
    C.
    Finally,      we    address      the    plaintiffs’       claim     that     the
    September 2011 raises had ongoing and impermissible effects on
    wages, reintroducing a race-based disparity in pay between black
    and white workers generally, and also generating a disparity
    between the plaintiffs’ wages and those of other black TS-IVs
    that is indicative of retaliation.                 In support of their claim,
    the plaintiffs proffered a statistical analysis of salary charts
    for fiscal years 2012-13 and 2013-14 that, they say, shows white
    TS-IVs earning more than black TS-IVs generally, and both white
    and black TS-IVs earning more than Harrison, Roach, and Hawkins
    specifically.
    Preliminarily, we agree with the district court that the
    plaintiffs properly exhausted this claim by pleading it in their
    EEOC charge.        DMH argues otherwise, pointing to the fact that
    the   EEOC    charge     refers   expressly     only   to    the    September     2011
    raises,      and   not    to   wages   in     2012   or     2013.     But    as    the
    plaintiffs’        counsel     clarified      at     argument,      the     two   are
    2If there is no evidence of a meeting of the minds on this
    point, the district court can address that issue.
    17
    intertwined; the calculations of pay disparity in 2012 and 2013
    advanced by the plaintiffs in this suit are intended as evidence
    of the retaliatory and discriminatory effects of the September
    2011 raises, and not of some independent harm.                     We construe EEOC
    charges “liberally” for these purposes, Bonds v. Leavitt, 
    629 F.3d 369
    , 379 (4th Cir. 2011), requiring only that the “factual
    allegations in the administrative charge [be] reasonably related
    to the factual allegations in the formal litigation,” Chacko v.
    Patuxent Inst., 
    429 F.3d 505
    , 509 (4th Cir. 2005), and like the
    district court, we are satisfied that the plaintiffs have met
    that standard here.
    Turning     to   the    merits,      the    plaintiffs   framed      their   pay
    disparity claims around a series of DMH salary charts, provided
    by DMH during discovery, that list the salary, classification,
    race,   and    date   of    hire    for   employees     in   the    Physical   Plant
    Services      department.          From   that    raw   data,       the   plaintiffs
    conducted what they describe as “basic math,” calculating the
    averages of the salaries of DMH employees with particular roles,
    levels of experience, and race, and then the differences between
    those averages.        It is those calculations that the plaintiffs
    rely on to show that after the 2011 raises, black TS-IVs were,
    on average, paid less than their white counterparts; and that
    the plaintiffs, in particular, were paid less than both white
    and black comparators.
    18
    The    district       court      found   the     plaintiffs’       charts     and
    statistical        data     wanting,      and    we     understand       the    court’s
    hesitation.        As the magistrate judge explained, there are cases
    in which “basic math” is no substitute for expert statistical
    analysis, which can ensure that undue weight is not given to
    statistically        insignificant        disparities.            See    Moultrie     v.
    Martin, 
    690 F.2d 1078
    , 1082 (4th Cir. 1982).                            Moreover, DMH
    raised       substantial      questions         about    the      failure       of   the
    plaintiffs’ data to distinguish between “specialized” TS-IVs —
    professionally licensed electricians, plumbers, carpenters, and
    the like, who command higher salaries in the job market — and
    unspecialized TS-IVs, including the plaintiffs.                          Because that
    information        might    have     revealed    legitimate       grounds      for   pay
    disparities, it should be accounted for in the data set and
    analysis, if possible.             Cf. Matusick v. Erie Cnty. Water Auth.,
    
    757 F.3d 31
    , 54 (2d Cir. 2014) (Title VII comparators should be
    similar in all “material” respects).
    On    the     other     hand,      we    cannot        overlook     DMH’s     own
    responsibility for the deficiencies in the plaintiffs’ data set.
    The    plaintiffs     are     working,     as    they    must,    from     information
    provided to them by DMH in discovery — here, DMH salary charts
    that   do    not    identify       or   differentiate         “specialized”     TS-IVs.
    And    according      to    the    plaintiffs,        DMH’s    discovery       responses
    included no other information that would have allowed them to
    19
    distinguish among TS-IVs on the basis of level of experience,
    education, or skill.
    Courts    often    have    remanded      Title    VII    cases      for    further
    factual development when a first round of discovery has failed
    to produce information relevant to whether purported comparators
    are    “similarly     situated”    to   a    plaintiff,        see,   e.g.,      Bobo    v.
    United Parcel Serv., Inc., 
    665 F.3d 741
    , 753 (6th Cir. 2012);
    Paquin v. Fed. Nat’l Mortg. Ass’n, 
    119 F.3d 23
    , 28 (D.C. Cir.
    1997), and we think that is the best course to follow here.                              On
    remand, the plaintiffs may present, as evidence of disparate
    pay,    data    and   calculations      based    on     the   2012–13      and    2013–14
    salary charts provided by DMH in discovery, though the district
    court is free to impose conditions and safeguards — including a
    requirement of expert testimony to contextualize the data — that
    it    deems    necessary.        DMH,   in    turn,     may    turn   over       evidence
    regarding      pay    differentials     based     on     “specialization,”          along
    with any other evidence it considers relevant to identifying the
    plaintiffs’      proper     comparators         for     purposes      of    their       pay
    disparity claims.
    III.
    The district court properly granted summary judgment to DMH
    on many of the plaintiffs’ Title VII claims.                            But with the
    benefit of appellate briefing and argument, and the refinement
    20
    of the issues that they bring, we conclude that the plaintiffs’
    claims related to the September 2011 raises and subsequent pay
    disparities cannot be decided on summary judgment on the record
    as   it      now   stands,    and     instead       require   further   factual
    development.       We therefore vacate the grant of summary judgment
    on   those    claims   and   remand   the    case    for   further   proceedings
    consistent with this opinion.
    VACATED AND REMANDED
    21