In terms of experience in dealing with a variety of situations and problems like those he faced this season? The answer is, yes.
It might have been better if Jeff had spent more time as an assistant under a veteran head coach he could learn from, or coached at the AAU level like Frank Martin. I've got to believe that would have prepared him a lot better to adjust to the diverse personalities he had to deal with this year.
I'll add that it would also help if he adopted more of Martin's style of maintaining control of his players. I'm just not sure Jeff can do that. But he needs to realize that you can't be buddy-buddy to everyone and be in charge at the same time. It works well with some kids (adults, too, for that matter). But there are always a few who will take advantage if you give them a chance. The key is separating the chaff from the wheat before it's too late.