He has good leadership skills which should translate well for recruiting. Also a good role model type for young players I think. And maybe while he's there with the Mud Dogs or whatever he can sharpen up his X's and O's. Half his problem is his leadership ability got him jobs he wasn't ready for IMO. He never did his time mastering the scheme side and learning how to put up a consistent defensive product.
Compare him with Belichick who toiled as a DC and fully mastered it before he moved on to HC. I think that matters.