I'm really high on his ceiling and if he can really shoot threes he is going to play in the NBA, but I also thought he had some real bad moments on offense, particularly showing nothing off the dribble, unable to shake defenders and some bad turnovers. If he didn't shoot well from three, he would have had a really poor game. You can see why he has potential, but also why he fell in the draft and struggled to score at Arkansas.
The bright side on his shooting is he shot 20 of 72 from three at Arkansas. That's a small sample size, and he has spoken recently about not being encouraged to shoot threes at Arkansas, and the Celtics are really encouraging to him letting it fly. It's possible he is a better shooter than he showed at Arkansas, his form looks good and he was appropriately aggressive in his first game.