Do we really need a post player who cannot defend the rim, and is thus useful on only one end of the floor (and even there is not a particularly good match for today's game)? I still have not seen a particularly good argument, here or elsewhere, about why it is the Celtics would want Okafor given his deficiencies on the defensive end and his ball stopping game on offense. I'd much rather gamble on Bender, who is a better fit for today's game and almost certainly a better defender, or Murray (who can help address the perimeter game and add another option who can create his own shot) than just throw up our hands and go "we need a post player" and get Jahlil "The Dinosaur" Okafor.
EDIT: Multiple replies were posted while I was writing this. I'd ask HRB and Ed both to address how Okafor fits the team on defense, and if he can move the ball enough to fit the offense. If the answer is "he's young so he can improve" or "he played on a dysfunctional team last year, so we don't know", my retort would simply that we can make the same kind of hypotheticals for every player in the draft. If there's concrete evidence, actual data, that suggests Okafor can fit our needs, my eyes are wide open. If we're just wishcasting and hand waving, then that's not good enough.