Sadly, its not just about Obama. The Dept. of Education, Energy, HHS/FDA/HUD, TSA, etc... have been around for years, just growing their roots - sometimes quickly, sometimes more slowly, but always growing. Republicans may trim them, but these bureaucracies and their staff are firmly "Progressive" in their outlook, and just wait for the likes of an Obama+Pelosi to come along to bloom.
Obama appoints the heads of them. And he appoints no one sho is not a committed Marxist.