Heh, are you seriously comparing Denver's offense with ours? Really? Cutler had 2 #1 receivers, a very good pass catching TE, one the top Olines in football, and an offensive minded coach in Shanahan. What did the Bills have? one #1 receiver, 2 RBs, an average (at best) Oline, and a #3 receiver. Cutler only managed an 86 QB rating with all that talent surrounding him.
Maybe you should take Cutler's balls out of your mouth and actually compare the two rosters.