Emanuel left to become Mayor of Chicago. The rest were on their way out anyway and have been ‘rewarded’ with high paying jobs. I still don’t see it as hatred. They aren’t destroying them and and as far as I can see they are still working for Obamatron, just informally.
You can call it a ‘purge’, I don’t see it that way- at least not yet.
Axelrod’s book indicates they mostly lost in power struggles with Jarrett, Rahm especially.