I'm not gonna go back over the past year pulling quotes from conversations, but I don't see Pruitt making JG/BM a personal decision.
I'm inclined to believe Pruitt learned a lesson about the necessity of agreeing on philosophy & establishing a personal rapport with his coordinators after Tyson Helton's departure.
@sjt18 pointed out allot of good reasons to refute your idea of Pruitt having a personal preference for JG & I'll throw another in there.
5-6 years from now, with an SEC Championship or two under his belt, Pruitt might tell Chaney's OC replacement who he's starting at QB before the new guy signs the dotted line.
Doesn't Chaney want to retire here after this stint? It doesn't swing anywhere close enough to the ground for Pruitt to push that JG personal decision, when hiring a new OC, past Fulmer's guidance after his 5-7 record as a 1st year head coach. Chaney's too savvy to put himself in that position at this stage of his career anyway.
This ain't no dang Currie, Butch, & L. Scott sh!t show no more.
Now moving past all that deal bartering, Chaney's career metrics show he generally plays it conservative for a test ride his 1st year on an OC stint.
How much can Jim Chaney improve the Tennessee offense in year one? Here’s what the numbers tell us
I realize I'm kinda presenting my thoughts on this in a suppositional manner but, unless Chaney were to take another OC job, I haven't felt this fires heat and I don't see any smoke.