My stance:
1. Norvell can't evaluate high school receivers. He can however entice transfers here so he's basically an Eddie Sutton of recruiters. Net-Net is we need someone who can evaluate guys for route running.
2. QB progression is at a standstill since Heupel became OC. This is fairly common in college football though, so I think as a head coach, you always have a dedicated quarterback coach.
3. Heupel and Norvell seem to have eminent faith in their ability to correct mistakes - mistakes that you just can't fix in a season like route running.