447 F.3d 491 INTERNATIONAL BROTHERHOOD OF TEAMSTERS, AFL-CIO, and Teamsters Local Union No. 2727, Plaintiffs-Appellants,v.UNITED PARCEL SERVICE CO., Defendant-Appellee. No. 05-5478. United States Court of Appeals, Sixth Circuit. Argued: January 24, 2006. Decided and Filed: April 26, 2006. COPYRIGHT MATERIAL OMITTED COPYRIGHT MATERIAL OMITTED ARGUED: Roland Wilder, Jr., Baptiste & Wilder, Washington, D.C., for Appellants. […]