Update: Ghattas and Meckler's names were misspelled in the 6th paragraph in the original publication of this story. Corrections have been made.Cozen O’Connor has named Anne L. Blume as the sole office managing partner in Chicago.The announcement comes after about a year serving alongside co-managing partners Tia Christine Ghattas and Joseph E. Tilson.“Those are two very busy people, and it’s not that I’m not busy, but I think it was time for single leadership and to let those two return to their …