With the open bench spot Monty left, I would love to see them bring in an offensive minded coach to change that offense around. They are going to have to do it soon so the free agents they are looking to resign/sign know what direction the team is going in.
I have wondered how much the assistant coaching movement impacted the team. In March, Billy Lange left to become the head coach at St. Joe's University. Jim O'Brien was brought in to replace him. During the playoffs (earlier this month), Monty was announced as the new coach of the Phoenix Suns, though he stayed with the Sixers until the end of the playoffs.
Monty had a stellar reputation. Lange wasn't on Monty's level, but he was well thought of in coaching circles.