It's a matter of opinion, I guess. I reckon I'd write something slightly different:
Every time I saw this guy last year he didn't look solid at all, although he just turned 22.
Because O'Bryant was drafted by the Warriors before Don Nelson came on board, Nellie couldn't take credit for him, and probably never took to him. On the other hand, he looks very raw and hasn't put together good numbers down in the NBDL, except on the shot-blocking department. He'll not come that cheap, assuming Boston spend one of theirs valuable exceptions on him, and although he's the same age as Jason Thompson and six months older than Roy Hibbert, he's less skilled than both these guys and light years away of Hibbert when it comes to fundamentals. Besides that, many question his work ethic. Now he needs the developmental drills.
Of course Rondo has. I'd argue that Ellis has developed more, but thats not really the point. The point was whether Nellie plays young players or not.
I think Nellie doesn't develop young bigs. example: brandon wright. O'bryant=big. we'll see what happens with a great big man coach. I'd say a lot of people thought perk was a stiff and look how far he has come. One caveat with that comparision being, Perk has a great work ethic.
It's well known Nellie doesn't like all kind of bigs - especially those who don't suit his game style. But that's also true to many coaches in the league: Jackson doesn't like dominant pgs who can't shoot, JOB doesn't like wingers without range, etc.
But if they're good, he'll play them (he never quit playing Weber). Why hasn't anybody mentioned Biedrins already? He's 6'11'', not the typical Nellie's center, he's the same age of O'Bryant and Don Nelson has no problems in playing him.