If he stuck around, maybe. Given how it's gone for him now that he's left, no chance. More chance of us going for someone like McCabe for the rookie route, or someone with some level of experience. I don't think he'll walk or be sacked either way so pretty much pointless.
Bartley was our defensive coach alongside assistant manager, since he's left we've been utterly pish at the back so he must know his stuff. Could just be a case of the quality of player he's asking to do certain things. I'd take him back in a heartbeat as a coach to sort our defence out.