His biggest collective mistake was to leave any member of the previous administration in their posts.
Amen to that!
Yes, I've been saying that ever since the fall of 2000.
Bush got off to a very slow start because of the chad wars and clinton's refusal to allow a transition government. BUT Bush seriously screwed up not to shovel all the clintonoids out first and worry about replacing them afterward. Having nobody sitting at the desks is better than having gangs of clintonoid and carterite traitors sitting at the desks all over the bureaucracy.