At this point in his career there's no point in Carnes staying at QB, he'll only play if something really, really drastic happens (meaning Taylor, Tommy, and Ron all go down), so it would make sense for a really athletic guy to move to a position we're he'd be better suited, we've seen it happen before just move him to slot, maybe he'd be able to figure out that position better than QB because it sure doesn't know the playbook well enough to even get a legitimate shot of competing at QB anymore. Heck they'd probably put Jamal back there before Brion, that's how far he's fallen in the coaches eyes and the lack of trust they have in him.