Tp, Big. Not sure why so many hate on Okafor. He's 20 showed great promise as a rookie, is a much better post player already than Horford and that's saying something.
I think his upside is a better offensive player than Tim Duncan, and if that happens you can build an offense around that no matter what era.
He played on the worst team in the NBA, and that team was worse (not just a little bit worse, a LOT worse) on both ends of the court when he was playing.
* He's slow and poorly conditioned
* He has a horrible attitude
* He's got poor court feel (Noel, of all people, had a better Ast:TO ratio)
* He is completely lacking in flexibility (back to the basket center is the only role he can play, and he can only defend one position)
* He lacks range on his jumper
* He is, statistically, the worst defensive center in the entire NBA
He's a poor man's Al Jefferson / Greg Monroe, but with a significantly lower motor and a terrible attitude and worse conditioning.
I don't see how you could possible have so much difficulty understanding why people don't want him in Boston.
He doesn't lack range on his jumper, he just doesn't extend it out to the three point range, but as I posted a few posts above yours, he absolutely has a very credible mid-range jump shot, which also means he can do a lot more than just play with his back to the basket. There is plenty to hate on Okafor about from his rookie year, but when you says things that lack evidence it detracts from the actual things he does poorly.
BTW, using totals Noel has a better AST/TO ratio, but not using the percentages. Okafor has a significantly better AST%/TO% than Noel does, which makes some sense given Okafor had a significantly higher USG% than Noel (i.e. Okafor had the ball a lot more so he obviously would commit more total turnovers, but his percent of turnovers is much lower than Noel's). This is where using totals gets you into the trouble.
Maybe his assist to turnover numbers don't look as bad when you look at them from a percentage vantage point, but his assist percentage compared to his usage percentage is absolutely woeful.
They're percentages; the previous argument is not reasonable. A turnover % of 12.5 is not good whatever the usage rate is.
He was a rookie, though. You could expect better going forward, if he continues to play as he has.
However: he was mostly a non-passer, which actually limited the number of bad passes he could throw. If I were a GM considering signing him, I'd be concerned that running the offense through him (as opposed to dumping the ball into the post and letting him do his thing) would be a horror show of runouts for the other team. Most of his turnovers were of the lost ball, traveling, and offensive foul type.
And as long as we're comparing Horford to Okafor, Horford's TOV% was a ridiculously low 8.8, while his Assist% was an outstanding (for a big) 16.7.
To re-re-iterate: he doesn't score off assists and he doesn't give assists to others. He's a one man show out there.
This, in a nutshell, is the real issue:
he doesn't fit the Celtics - or, they'd have to completely revamp the offense if they added him (say goodbye to "pace and space") - or, he'd have to completely revamp his game so that he was suddenly a pick and roll big in a modern offense.
It's pretty obvious that they're going in the other direction by adding Al Horford, who can play both pick and roll and pick and pop (he's the rare player who is a productive jump shooter from 16 out to the line); Danny Ainge has always preferred bigs you can run offense through.
Jahlil Okafor has done a phenomenal amount of work turning himself into a superb low-post scorer. He has an identifiable skill, in other words, which should qualify him to be at least a bench player somewhere in the NBA, despite his glaring flaws in other areas of the game.
Someone will take a chance on him going forward; but it won't be Danny Ainge.