He does have a law degree & practiced for 5 years. Personally, as much as I love the "brawling" aspect of his nature, I think he's perfect where he is. He's going to battle for cutting down the size of government & he's willing to make it happen. He's doing a GREAT job of getting the rogue CFPB under control and accountable, in addition to his OMB duties - quite a work load he's carrying & seems to be able to handle it.
Mick Mulvaney Orders Federal Agencies to Prepare for Massive Cuts