re: Chevy Chase's departure from Community

Pretty sure that puppet episode Thursday was the last produced episode of the season (there will be a few more episodes aired but due to the nature of the puppets they waited until the end of the season to make the episode). That would explain why Chevy wasn't in any of the study group scenes. Apparently he recorded his voiceover after quitting as part of his agreement for leaving the show.

So, no real effect on this season and doesn't look like it's coming back again.

But yeah, Chevy's universally considered an arse. Medium talent.