Milton earned it in practice. That was what the coaches discerned... but it was also what those allowed to see practice said. In fact, they not only said Milton won the job but that he won it by a wide margin. He was hitting the throws he's missed in games.
Heupel from the start said he had confidence in all three.
It takes a LOT of coaching courage to make a decision to move on from a guy who has performed in practice. Neither Jones or Pruitt showed that courage or intelligence.
So he took a risk on a freakish physical talent that seemed to be working out in August practice... and that means he doesn't know what a QB looks like?
I seldom make ironclad predictions but will make one here:
NO. Not every QB he recruits will be great or become a starter.... just like any other coach.
Do you understand why he wanted 5 guys in his QB room? At one point he very well could have had Maurer (who still shouldn't have left), Salter, Bailey, Milton, and Hooker. Because unlike the last two incompetents he understands that competition brings out the best in any guy you want as your QB AND that evaluations no matter how good or careful you are... are never 100%.
Apparently he developed. They invested extra time and he looked like a world beater in practice.
It should be concerning to you that you don't get it better than you do. Milton won the job in August. It was live competition that exposed him. By almost every insider account... Hooker had a relatively poor August camp. But he has stepped up when the opportunity came. This isn't a perfect science. Coaches have to evaluate guys as best they can whether as recruits or in practice then make decisions. It is to CJH's GREAT CREDIT that he was willing to change course when it became necessary. UT's last two coaches were fired in large measure because they wouldn't change QB's or much of anything else. Their egos got in the way too much.