But they could have played together as Osobor is a 4 and Williams a 5. It's a big loss IMO.Osobor averaged 0.267 rebounds per minute last season.
Amari Williams averaged 0.32 rebounds per minute two years ago and 0.34 rebounds last season.
Minute for minute, Williams is actually a better rebounder than Osobor.
Give Williams the same minutes Osobor had last year, and Williams is averaging 11.5 rebounds per game. That's poor-man's Oscar range.