To me we do this every year. This guy is a reach, this guy sucks, this guy is going to be the best player to ever wear green...
I'll say this:
I'll take a kid with an above average IQ, that looks up to someone that was an NBA legend (Kobe), and sets a high goal at the age of 19 with somewhat of a mean streak over any player picked. This kid has the intangibles that could make him great. It's been 1 1/2 summer league games and he got a little banged up and got off on the wrong foot. I think in time we might look back at these threads and see the ridiculousness of them all. One thing I'll say about this guy is that he is already on the path to wanting to be the best and not a beta like Durant.
Now I say that with tempered expectations, but I'll take the angry alpha over the gifted beta every day of the week. I think that ainge sees that too which is why they drafted him. It might take a couple years but I really believe he won't disappoint.