Mozgov has been making small improvements as of late. Don`t worry about him, as long as he gets his minutes he will become a really good player for us.
As for Randolph he has to play, simple as that. How is a young inexperirnced player with huge talent supposed to improve and gain much needed experience if he doesn`t actually play. What good is it doing him to sit on the bench night in, night out and get no playing time?