I have more respect for Settle as a RB position coach than most people here do. But our special teams are literally the worst I have ever seen, and that comes down on Settle. I have never seen so many blocked kicks and bad snaps. And although Settle recruited successfully when he was at WI, he has not recruited any players here AFAIK. I suspect Moorman's and Keith's flips must have hurt Settle's stock inside the program quite a bit.
Whoever becomes our next RB coach, I suspect he will be an effective recruiter. I doubt it will be Gran. If Scan stays around, assigning Gran as one of his assistants would be awkward. If Scan leaves, the smart play is to get a new OC in place and ask him to help with the RB coach and OL coach searches.