Also, what happens when he takes up all of our cap space with a huge contract and we cut Angelo Crowell or Lee Evans? Then, other veterans start to take sides against Chad and our management since he ran out the "heart & soul" of the Bills. Also, the same defense and offense that was jelling, now has holes that we need to fill next year with rookies or free agents.
If it were as easy as trading a pick for him, then I'd say that it's worth it, but the reality of the situation is that he's too risky of a pick up for us. With the space he'll take on the cap in addition to his attitude this offseason, I can't see the Bills making a move on him.