You know, you almost talk yourself into things at times.
The NBA is full of guys, that under your talking your way into it shceme should be completely ineffective. Tysson Chandler should be comepltely ineffective. Big Ben should be completely ineffective. Kendrick Perkins. Jopel Pryzbilla. Andris Biedrins. And the list goes on. They are hardly ineffective. They are defensive anchors.
There is nothign any different about Thabeet's offense than any of those guys -- in college the lack of talent around him meant they were trying to post him and whatnot. That won't bew necessary in the NBA, and it won't matter in the least. Hel'll set picks, he will roll to the hoop. Occasionally he will seal his man after a back pick and wait for the lob. He'll run the floor and get inside position early and look for the alley oop. Occasionally he'll grab and offensive board and mop up. Its a very effective roleplaying style of offense. MORE effective than many guys who enter the league with some postgame, but not enough of one to make a difference precisely because it does not require the ball. Guys who do not require the ball but who can still be effective without it always can be fitted into an offense.If you think you can leave thabeet then you haven;t seen him play at all this year. You can certainly guard him, but only by keeping a man, or in college frequently several men, in body contact with him at all times. He's 7'3" and as soon as his man loses contract with him he heads right to the hoop where he's nearly impossible to miss. As a major threat in college other teams would spend much of their gameplan making sure that did not happen. As a non-threat in the NBA teams would lvoe to be able to help off of him with that man. But you can't. You leave, he goes to the hoop, its an easy pass to the 7'3" guy for the dunk. That's not only theory, that's the game he plays. And as long as he occupies his man, he's doing his job on that end of the floor.
And as an aside, one of the intriguing things about Thabeet is his developing midrange jumper. Its completely unblockable. If it continues to develop he will actually be a prime offensive roleplayer.