The great thing about this deal for CLE is the amount of depth they have, which has already been mentioned, which enables them to limit Varejaos minutes to around 25 mpg and Bynums to 25-30 mpg.
If the entire frontline is healthy, I think Brown will start Varejao with Bynum since Brown, like many coaches, prefers to play more experienced players over youth, and obviously because Varejaos a much better player than Thompson at this point. Plus they'll have potentially the best starting PF/C combo in terms of offensive rebounding in the NBA. Then you come off the bench with Thompson and Bennett in a more uptempo lineup, and you have a very good mix of players and difference in style of play in different parts of the game.
I really like their lineup, if healthy obviously. They still have Gee too who can fill in for good minutes at the 2/3 if needed.