I think Rivera, Frazier, and definately Cowher would be great additions. With that said, since Singletary should be unemployed at season's end, he could be the D-Coordinator. He has a grasp on the defensive aspect. Rivera, as stated earlier in the thread, has paid his dues and his time has come. We need to make a splash in free agency with a top O-line and WR FA. Martz needs to go before Cutler gets killed. We really can't blame Tice for the O-line's problems for the simple fact no matter how much you polish a turd, it will forever be a turd.
--BearsFan1974