You're not actually comparing him to Dan Campbell are you? The guy is one helluva coach. And maybe even a better guy.I think Brian could be an okay head coach some day, but he'd have to find a program that's okay with a Dan Campbell-esque, meathead style of head coach.
Call me crazy, but Brian should have gone into coaching defense, either Dline or linebackers, because he has the personality of defensive position coach, or even a D coordinator. I think he really missed his calling. I know he played Oline, but a lot of players who played offense end up coaching defense.