Offense is all that matters in the NBA. He has great low post moves, like a Kevin McHale. Most of the big men drafted these days are those explosive leapers and athletes, but they're shitty basketball players. This guy will score a ton in the NBA.
Seems like those same players developed a pretty good grasp of D at Kentucky. And I don't think they owe anyone any apologies for being gifted offensive players.
Okafor isn't a shot blocker, but his D, in the context of Duke's team D, isn't bad.