I pointed out the Chevy thing a while back...it kind of still goes with the fallout from last year's season finale where Pierce told them he didn't need them any more.
But I thought that "story" was resolved... It's certainly not something that seems to be in play now.
The gossip person in me wonders: maybe Chevy isn't getting along with people, or he doesn't want to be on the show, I never seem him do press for it...
... I don't know.