-ressurects dead comment page-
Characters cycle...in EVERY TV show, they cycle. Besides, George DID have a storyline up through half of season 5. First off, needing to pass the intern exam, and secondly, there was wrapping up Lexie's feelings for him. You have to consider the other storylines that are going on at the same time. Nobody got as much screen time as Izzie did, and for obvious reasons. In season four, the focus was to get Meredith where she needed to be in order to finaly get to be the person that she dreamed of being. We don't know what would have happened if TR hadn't walked out on the show. Isn't it possible that he might have been introduced with an amazing storyline about the aftermath of the accident? We'll never know what the original intention was.
Honestly, I'm glad about all this. I've hated George ever since he slept with Meredith. The character turned into a whiny b**** after that..."Oh, woe is me! I'm in love with a woman I hardly know and even after I take advantage of her while I know she's in love with Derek, I'm still going to act like it's just that the world's out to get me, even if I've met this amazing woman named Callie!"