1. Who cares we don't know his replacement. Coordinators get replaced like used underwear without teams skipping a beat.
2. If he didn't recruit well in the past is he suddenly going to recruit well now? Especially note that his position group (DLine) has been the thinnest of the defense.
3. We know BYU's defense plays the defensive version of the Princeton offense. Keep the scoring low and fear big passing plays to no end. Never attack, basically give up any mid range play, and leave your Dline out to dry.