So y not just sign McCoy if we need pro bowl talent at that spot
I would even though I'm not sure McCoy is Pro Bowl talent anymore.
Collins can't stay healthy and hasn't shown he's more than a rotational 3-tech. Crawford is also just a rotational 3-tech. Hyder might be a good pass rusher from the spot, and Covington might contribute at the position as a run-stopper who might be on par with Crawford and Collins as an interior pass rusher. However, our hopes of finding a dominant 3-tech really lie with Hill. If he fails, then we're left with contributors but no bell cow.
I'd get McCoy as a transitional player for the position. We can either give up Collins, possibly getting something for him in the trade, or cut Crawford and his high salary, which would make room for the move. My only hesitation with letting Crawford, though, is that he's a solid player who has often filled in admirably when others were injured or proved unworthy. He's not great, but he's a good piece to have, even though the cost is too high. I'd probably still end up cutting him, but I'd wait until near the end of camp to do it to make sure we don't need him.