Fitz - Keep him as backup at reasonable salary, if possible, but his limitations are far beyond coaching. He's a great guy, but too limited to win enough to be satisfying.
Chan - His play calling is often frustrating. Perhaps bringing in an O-Coordinator would be "enough". Given I generally like what I've seen of our personnel changes, he's my first stop answering for our results after addressing the obvious QB problem.
Wannstedt- He has looked to be in over his head, but this is the start of a year in a new system. I suspect many of the issues are with the players fitting and being fluid in the "new" scheme.
Nix - I'm a supporter. In broad strokes, I like his picks and his shift to us being a bigger stronger team. I don't know how much to blame him for us still sticking with Fitz as our starter. This is his biggest issue IMO.
Ralph. I don't think Ralph is doing anything that is affecting our win-loss record. Maybe he has in the last few years; I don't know. If Ralph moves on, I personally don't think the Bills will still be in Buffalo so this is the bottom of any list for me.