Again, the JO career story is simple, of all the returners he is the worst fit for oscar's system, but oscar is still trying to find ways to use him.

Again, the biggest difference for JO this year is he is playing less and scoring less. In all games shown in the chart his boarding and shot blocking is pretty consistent, but he drops of drastically in scoring and has a lot more turnovers in those games vs KU, ISU, and OSU (the best teams we've played in the Big 12). To me those go together because of his inability to catch in scoring position in those games, but I'll concede some of that is on the passer (Though I assume the passer got the TOs in those situations). Note he is a better rebounder and TOs are way down overall in Big 12 play this year.
And we all know that the minutes are down this year, and way down from the 30 MPG he was playing late last year because oscar's system is using different personnel and Gip/JO are splitting time now. Compounded his reduced minutes is that he's fouling a lot more than he did last year.
It is what it is, and I don't blame JO or oscar.