The Bengals are actually pretty good at getting teams to 3rd and longs. They're really bad at then getting those stops. I would guess they've given up 10+ conversions on 3rd & 7 plus over the last 2 weeks. They need a pass rusher, not a run stuffer.
If there was a move that could make the Bengals significantly better, then I'm all for it. I'm not really interested in a move that just takes them from 4 to 5 wins if that guy is going to be gone next year. I'd rather take the 4 losses and better draft position.