Player development is a far greater problem than x's and o's. When your players don't develop, it limits what you can do from and x and o standpoint.
I mean, this team doesn't do anything well offensively. They don't screen well, their cuts are often purposeless and poorly timed, nobody - sans Adams - can finish through contact, none of our bigs can put the ball on the floor or pass worth a damn, and our senior shooting guard recoils into a seizure every time he gets the ball. Then there is the obvious problem that nobody on the team can shoot.
I have never had any question that Ollie capable of diagramming an offense that churns out consistently good shots. But, save maybe last season, he's never had the personnel to do it (and by March, that team figured it out). Even the '14 team was limited at the forward position.
I don't necessarily think KO is incapable of tailoring his offense to suit the limitations of his personnel, but I think at his core he's a basketball junkie who loves the x's and o's aspect of the job, and that might help demonstrate why he always appears so mystified on the sidelines. Honestly, I don't blame him. He shouldn't have to spoon feed these kids pearls of wisdom that they should have gotten in the sixth grade. For as much as he's struggled as a college coach, I'd be willing to bet you could give him an NBA job tomorrow and he'd hold his own with the right team.
Ultimately, he'll need to either become a better teacher or a better identifier of players who have already been taught well. His inability to do one of those has been the undoing of these last three years.