Carter is definitely on the block and can be had for cheap at the moment. While I don't like him off the ice and think he's a cancer, on the ice he's a good sniper. Torts could probably straighten him out. He could be a good winger that plays well with Richards. Anyway, people point to his cap hit and long contract as reasons to stay away but here's something interesting I thought of.
The Rangers get Carter for very little and then if he succeeds that's great and if he doesn't we can send him to Hartford and let him rot out the rest of his long contract. I don't know how long he'd want to ride the bus down there and eventually he'd want out of his contract.
I don't exactly know if the Rangers can do that, but i'm not finding any reason why they couldn't.