Everyone seems to think a highly efficient passing O just magically appears out of thin air with the right QB. It takes practice and game reps, Buffalo averaged the lowest in the league. It takes a proven system/coahing, Buffalo sent the architect of the Bills O packing two weeks into the season, then continued out of the same run heavy playbook. It takes good playmakers at WR, Buffalo has one and he missed part of the season.
Does this sound like the kind of conditions any QB can produce well under, because it doesn't to me.