I really don't like his game. Too much one on one, always standing up on defense, gets lost in rotation at least ten times a game, very little effort some times, etc....
The talent is certainly there. However, he definitely has the very same flaws in his game that you point out.
Granted, it is only his second year.
Personally, I like JT alot. He can just be frustrating to watch sometimes. Some of that could also be attributed to Stevens. He needs to pull Tatum aside and show him which aspects of his game he can improve on.
That's the coach's job.