I know there's been info alluding to it on Twitter and other places, but just spoke to a friend who mentioned a couple former players (including a certain MLB) who HATE Rhule. At a party with my friend, a couple former players saw Rhule on TV, start yelling GTFO at the TV, how the former players hate him, etc. Might explain Luke's decision to peace out from his scouting role as well.
There's a reason Rhule wants Temple/Baylor guys on his team. They bought in at a young age and don't know any better. Actual NFL players tune this dude out.