Bear in mind a clean sweep means getting rid of AJ and Chris Fetter. And a whole bunch of guys they hired from other (more successful) orgs in the offseason to revamp their minor league development team. (ie. Ryan Garko, Gabe Ribas, etc.)
It's painful, and I'm certainly on board with canning Al, but they've also made a lot of changes within the areas you are complaining about within the past 12 months. And I don't think firing Ryan Garko or Gabe Ribas after just hiring them away from the Angels and Dodgers is a smart idea at all.