I think one thing that would help, is Bagley expanding his game away from the basket. Right now, or at least when last seen, most of his game was at the basket, where your more likely to come down on someone's foot, or have your feet taken out from under you. Being able to hit a 16 to 18 foot jump shot would help a great deal, and hopefully hit the three as well. I agree that none of his injuries are of the chronic variety, which is a good thing. I'd be more worried if his ACL was torn.
Bagley is an elite athlete and his game should be built around that athleticism. He shouldn't be trying to post up the Gobert's and Steven Adams of the world. He should be out-quicking them from the top of the key.