I honestly can't understand why anyone would want Buff back for the Jets at this point. First, because it sure seems to me there's issues between him and the organization now and I'm not at all surprised by the rumors he wants out. But more importantly, He's nearly 35, and even if he does get himself back into some sort of shape to come back he'll still be a 35 year old D man who's body has already taken a serious beating. Even at his current best (which will require real effort on his part to get back to) he's not likely to be what he once was.
Afaic, I'm pretty much OK with moving almost any player over 35 who we have on a big contract.