I can see the high maintenance thing with Lance. Id compare him more to JR Smith (immature, wants to be a star, poster when things Dont go his way) than to Rodman (crazy, but an absolute workhorse). The thing with that is that the coach has to think the player is worth the "trouble". If not then you get what we are seeing now--the player getting benched.
Clifford could tone down on the direct, "Lance isn't a star player" comments. Like I said I may agree with everything he's saying, but as a coach I've always been taught that you want to enstill confidence in your players. Give them a role and ask them to excel as much as possible within that role. Clifford may see Lance isn't a star, but he needs to be giving Lance confidence to be a star within whatever role Clifford wants him to play within. If he doesn't, then eventually he will lose Lance. And that's if he hasn't lost him already.