Are you serious, unable to keep the player? Calhoun wasn't a master, they were different kids, different families. There's only so much you can do when a kid or family makes their mind up. Hamilton didn't want to stay in school he wanted to go play basketball as did Deandre. You don't think KO thought and offered their best move was to stay put and work on the weaknesses?
If he has better and smarter players now then we can begin to question his ability to develop. But Brimah, Facey and Purvis along with a guy like Enoch isn't on him or the staff who assists in development. They just had shortcomings some with bball IQ others just not good enough. While you criticize for not developing so many then please explain why Shabazz, Boat, Giffey, Deandre, Jalen, Vital have flourished under his and the staffs guidance. And Vance got better too.
How about we start from scratch with all these guys who want to be here and see how it goes?