I could live with Maccagnan as GM and Kubiak as HC, especially if he brings Wade Phillips with him as DC. All these coaching candidates have their warts, but Kubiak is the only one with a strong offensive background and previous experience. It's been only rookie head coaches since Parcells, and I think that's an issue.
Quinn looks good on paper, like a good hybrid of Mangini-Rex personality wise, and I'd be okay with him. But he's another rookie coach, and he's only been a coordinator of a completely stacked defense for two years. Sherman, Chancellor, and Wagner aren't coming with him.
The rest of the list is very uninspiring and underwhelming.