disclosed more than eight months before trial. We conclude that the district court did not abuse its discretion by imposing a discovery sanction. The record amply supports the district court’s discretionary determination that Sweetwater’s lapse was not justified or harmless.
Initial Rule 26(a) disclosures were due October 29, 2007. At least 12 of Sweetwater’s 38 contested witnesses were Castle Park employees by that date. The discovery cutoff was August 8, 2008, and lay witness depositions had to be completed by September 30, 2008. At least 19 of the 38 witnesses were Castle Park employees by those dates. And yet, Sweetwater did not disclose any of the 38 witnesses until November 23, 2009, more than 15 months after the close of discovery and less than a year before trial.
Sweetwater does not dispute that it did not formally offer the names of any of the 38 witnesses by the October 29, 2007, deadline for initial Rule 26(a) disclosures (or by the August 8, 2008, discovery cutoff, for that matter). Nor does it dispute that it did not “supplement or correct its disclosure or response,” see Fed. R. Civ. P. 26(a)(1), by offering the witnesses’ names in accord with Rule 26(e). Instead, Sweetwater contends that because other disclosed witnesses had mentioned the contested witnesses at their depositions, Plaintiffs were on notice that the contested witnesses might testify and were not prejudiced by untimely disclosure. Sweetwater contends, in essence, that it complied with Rule 26 because Plaintiffs knew of the contested witnesses’ existence.
The district court did not abuse its discretion by rejecting Sweetwater’s argument. The theory of disclosure under the Federal Rules of Civil Procedure is to encourage parties to try
