Betty White is super human. If you can find the clip of her on 30 Rock defying the "Rule of Three" it is amazing. I think what has most fans upset is not that they let these cast members go (they are older, there needs to be a curriculum we can maintain etc) So I think the main issue is we were never able to say good-bye to these beloved characters (on a show that did a good job of saying good-bye to characters and actors - Will Lee, Jerry Nelson). I feel that they did a disservice to themselves by having this happen all "off screen". I understand that an episode about these folks moving on may not have fit in with the direction the show was going, but how about Gordon and Susan are retiring in Yuma! And Luis is joining Maria in Puerto Rico (a hot potato I know), Bob is moving to Japan. Just give us some closure on these characters. It can happen in You Tube videos it does not to be within the show.