Read somewhere that it was believed that changes were forthcoming with the coaching staff, but wouldn't be made until after NSD. That included the possibility that CZA would be moving on...and its rumored he is looking around. If that is the case, then bringing Walker on board now in a QC position would likely lead to him being named the WR coach if indeed CZA were to depart. JMO.
Coming from that above average layman who thought Dobbs would win the Heisman and UT would go undefeated.
I have no idea who will become the starter and especially because we have had ZERO insights into the competition. But Dormady is a talented guy who knows the system. In brief glimpses, he has delivered the ball more accurately than Dobbs.
If Jones can't figure the OL out and UT needs a guy that will be running for his life... then maybe JG or even SJ is the answer. If the Vols have a good enough OL to succeed with a more pure QB then QD may very well be the best option.