They may not be able to drug test him, that sort of stuff is likely spelled out in the contract. It's also silly at this point. Yes, it is a bad thing to miss the flight. Yes, the team should take note and institute a plan to teach him how to be a pro. No they should not assume he's a lost cause or go overboard with ridiculous restrictions. He's a kid. Immature, yes, but hardly unusual for a kid his age. They can't all be Tatum. Let's see what happens during summer league, training camp, and the regular season before we pass judgement.