Don Shula lost the NFL Championship in his second season as Baltimore's head coach. That's with Johnny U at QB.
He replaced Weeb Ewbank who went on to win SB 3 with Broadway Joe and the Jets.
The Bills HC job will be considered one of the most sought after should it come open - a franchise QB, rabid fan base and good ownership. I am not convinced that McDermott is a dud and want to see the rest of the season play out with him. Only after that should we consider a move.
I am not convinced our next HC should be a former OC. Demeco Ryans is a former DC getting results with a young star QB.
Dan Quinn is going to get another HC job. He's got the pain of a SB loss as HC under his belt. He's ready yesterday. Dallas is a contender because of him. I think he's the most obvious choice but not the only one.