Glenn Schumann at Georgia just had his season end. He's a Bama alum. I do not think we have a defensive problem though (other than defensive players thinking that "tackling" means throwing a shoulder into the ball carrier and not wrapping up).
As for OC and o-line coach, we need a Jeff Stoutland kind of o-line coach. One who coaches the o-line up to play with an attitude. I do not know of a young o-line coach like that, though.
As for OC, someone who can repeat after me, "run the ball." One who, on 4th and 1, is not in the shotgun.