For months in Iowa, Mitt Romney tried to establish himself as a conservative's conservative — on national defense, hot-button social issues, and economics. Iowa didn't buy it, especially in the face of the Huckabee insurgency. So Romney has shifted back to his more natural role of the corporate candidate who wants to turnaround Washington, wading deep into policy during debates and showing up at town hall meetings with a to-do list. It's a more natural fit that allows him to run on real managerial expertise, not the conservative record he never had in the first place. But will New Hampshire buy his turnaround?