Yeah, IDK. If you're going to say that everyone left, at least try to back up your position. However, if you don't know who Alex Speier is, I honestly don't think you're really paying attention and are just making stuff up.
The Fangraphs interview I posted was conducted AFTER DD was let go. If DD had ruined the analytics department, I'm sure the Sox wouldn't be saying that it actually grew under DD's leadership.