I have to disagree. Read the reports from what had happened. Deron stopped running Sloan's plays. There were multiple reports claiming Sloan wanted to discipline Deron. But old man Miller had passed on and Greggy Boy didn't have Sloan's back. KOC refused to let Sloan take any action. So Sloan quit after his meeting with KOC, when he had finally had enough. That's not my fantastical story (certain poster who will attack me for this post). You can go back to the DN and Trib and read what others wrote.But maybe they made that all up. I guess that's possible.
I read everything that was written on the subject at the time. And nothing convinced me that Sloan couldn't have dealt with Deron had he wanted to. I even read where KOC and/or Miller pleaded with Sloan to stay. That doesn't have the ring of "didn't have Sloan's back" and "refused to let Sloan take any action". Everything I've read has convinced me that Sloan just got tired of it. The aggravation of dealing with Deron was likely the straw that broke the camel's back, but I never saw any compelling evidence that KOC and Miller literally prevented Sloan from dealing with a player.