I would imagine having Vick in there would do a lot for your total rushing numbers. They also threw for 5th from the bottom in yards, and got sacked 39 times compared to 45 for the Browns. That would be with having the most Mobile QB in NFL history and also playing a west coast type offense, which is supposed to rely on quick throws and cut down on the opponents opportunity to get to the QB. Obviously there are other factors in place.
You don't become a top team by overpaying system players, I'm not convinced this guy is much above a system player. We'll see if he can keep Porter or Haggans in check, or either of the emerging Cincy linebackers. If your primary weakness is that you struggle vs the speed rush, your hands will be full in the AFC north.