I agree that JJJ can play the pick and role and is a decent help defender. But when paying attention and actually watching you must have noticed that he can't guard his own man with the ball or without the ball, either because he is too weak or too slow or clueless.
No, I had not noticed these things because they aren't really true. Oh, certainly, like all these players, he loses his man once in a while. But overall, he's above average at playing his man.
I don't know what JJ"s long-term future in the NBA will be, but I suspect he will be just fine. There is a lot of blatant over-exageration on this thread. 'Useless'?? That's absurd. 'Clueless'?? Also absurd.
I seriously question whether some of the people bashing JJ and Smooge have even bothered watching any of these games.
The teams' +/- when JJ's been on the court has almost always been positive during this SL. And most telling is how much better the defense is when he's on the floor.
Here is a fanpost which actually breaks down what happened when JJ was on the floor of this particular game.
http://www.celticsblog.com/2012/7/17/3165001/summer-league-celtics-vs-atlanta-were-jjj-etwuan-really-uselessIn my experience, these are the kinds of things a coach should be looking at.
None of this means that JJ will be a star in this league or that he won't get traded away tomorrow for a bag of peanuts. But just plain watching the game plainly and clearly puts the lie to most of the absurd exaggerations on this thread.
And just what JJJ has contributed skill wise during the strong runs seems to me to be little more than he is guy who can get out of the way and hit a wide open 15 footer when completely unguarded. Quite honestly I can do that.
Why not expect something from him instead of apologizing for him, it's not just offensively that he doesn't look impressive, I don't see him hustling, working that hard or playing mistake free--he just looks slow, lost and overwhelmed most of the time.
see the above fanpost which breaks down "just what JJJ has contributed ..." during the key run in this last game.
As to your theory on bulky slower bigs I would argue that Perk, when with the Celts, with effort, hustle and determination contradicted your premise. Sullinger looks so much more determined out there than JJJ?
Perk in no way contradicts my premise. He directly supports it. Perk succeeded best when paired with KG - a very mobile big man. KG's ability to control large amounts of horizontal space hid Perk's slow feet and allowed Perk to concentrate on using his strength to push people out of post and otherwise play the vertical game of challenging shots at the rim.