OK fine, but I didn't see that Fes was a real chemistry problem. He was a goof-off, but not a real distraction.
If it was for the immediate good of the team, then why not play him? I think that the he was not getting minutes because Sloan thought (incorrectly IMHO) that it would hurt the team. However, Utah lost several games because of the bad interior defense that even a raw Fes could've helped countervail.
I wouldn't have an argument except that Utah did better overall with Fesenko on the court. And if he had gotten more burn, then he would've been able to do more than control the paint. I think that Sloan based his minutes on off-court behavior, which doesn't necessarily translate to on-court contribution.
Allen Iverson is the poster child of that principle.
What Sloan put little effort in doing is finding even minimal time for him, even when the outcome of the game wasn't in question. An average of about 3 minutes per eligible game simply isn't enough for especially a big to develop. A coach's job is to develop and to identify strategic advantages, and Fesenko was one of the few Jazzmen who could actually help to neutralize the Laker frontcourt and control the paint against many other teams. Fortunately Utah let go Boozer, who was part of the problem defensively.
I see Jefferson as a better center than Boozer was (alongside Millsap). But Sloan still should get Fesenko 10 to 15 MPG because (1) you don't want to wear down AJ's knees, (2) bigs need on-court time to develop. If Fes performs poorly, limit him to ten minutes. If Fes performs well, give him closer to fifteen minutes or more.
Coaching 101.