Good OLine coaches are worth their weight in gold. I am a friend of a retired Pro Bowl center and he can go on for hours about tendencies, techniques, foot and hand placement and on and on. The basics are easy, the minutia takes time and knowledge to teach. I played 2 years of CFB at Central back in the old days and he taught me more about line play in an hour than I learned in my career. He thinks Foley is great and that all the endorsement I need. He claims, as long as the players are coach-able, a good line coach can, in time, turn a bunch of division 2 type athletes into a solid, functional D1 unit. Give that same guy D1 talent to work with and we're on the way, once again, to a potent running attack.
Unless BD has someone good in the hopper, Foley is a key guy to keep.