Rex was without question an unmitigated disaster in Buffalo. He was an alleged defensive guru who ruined that side of the ball. However, Whaley blew it with the Watkins trade, and not doing a better job of addressing the QB situation. There is no coach who was going to win with QB’s like Manuel/Orton/Taylor/Tuel etc. Only a dominant defense could overcome such poor QB play. Contrary to the belief of many, this team never had a truly dominant defense, even before Rex. The numbers looked good, but they were never really dominant. Beane has built his defense while adding decent pieces on the offensive side of the ball. He also went all in to find a potential franchise QB. That’s how it’s done, Whaley never had a clear vision.