For the second time in less than a year, Cozen O’Connor has named a new office managing partner in Chicago.Jeremy J. Glenn, 45, was appointed to replace Anne L. Blume, who left the firm this week to become CEO of the Claims & Litigation Management Alliance in Plantation, Fla. Cozen announced Glenn’s appointment Monday.Before Blume was named sole office managing partner in February, she was one of three Chicago co-managing partners alongside Tia Christine Ghattas and Joseph E. Tilson.Following Meckler Bulger …