I strongly disagree. I think if I put any of the guys you mentioned in for the Bills, I have hope. Hope that when the game is on the line, he will come through. I honestly thought, during the last drive, that this would be the one. Then Fitz threw to Chandler on first down when CJ had one on one coverage crossing the middle. He was wide open in space. OK, first down. Then we kept in 5 wide sets, even though Spiller can dominate any safety or LB coming out of the backfield. Then my optimism turned to what it is EVERY TIME we get in this situation. Fear. And I feel the same fear every week the game is on the line. That somehow, Fitz will eff this up. Whether TJ was supposed to cross the safety or not (I believe he was), that was the wrong read on Fitz's part.
If you think, every time you have a chance, that somehow your QB will eff it up, then it's time to commit to finding a new one.