WOW! This news is truly unexpected. I've had my problems with Gamble but I do believe she's a good writer. I think as showrunner she's had a few shortcomings (we've discussed about this a lot, like the way she hasn't tries to set story) but the work on the characters, especially Dean, has been good for me. Although the lack of payoff has been a continuous source of frustration. Ironically, I think she's kinda ruined Sam, making him a cosmic victim and too passive in all his storylines.

I love Carver, though, and if someone should have taken her place, he is a good choice. I wasn't expecting his return. LOL may I make some writerly wish and hope for Raelle Tucker to come back as well?