1
To me, it would depend heavily on the locker room leaders on the defensive side of the ball. If they think he would fit in, it would be worth a shot. But the last thing this team needs is the defensive version of Percy Harvin. individual talent is good but culture is everything and I wouldn't risk that. Needless to say, the Harbaugh culture and the Carrol culture are very different. A guy that thrived in one may not thrive in the other.
My guess is he's a Steeler before long.