The coaches likely have a more thorough grasp of the situation than you or I though. If that is true and likely they would know, then 3 seems more reasonable. If you see what they are limiting Dobbs to as far as passing due to his inaccuracy in the middle of the field then you can see 3 makes even more sense because we maybe looking at a true freshman starting by the end of next year and it may not be because of injury. They do not trust Dobbs to exploit the middle of the field no matter what the defense gives them to this point. The inaccuracy in the Vandy game gives me a good idea why he has been limited as well.I've not seen that confirmed yet. Even if it is, Dobbs would still be the starter and I'd have the better of Dormady/Jennings after camp as my #2. The other would ideally RS then I'd add Kendall and another QB in 2016.
I would not EVER waste my time taking 3 QBs in a class. I would not spend my time coaching 3 guys in 1 class knowing full well at least 1 of them and possibly 2 never see year 2 or 3.
As I have said in other threads, I WOULD consider a Juco with 2 to play 2 IF Peterman were leaving.
JMO