Fog of war
Trump didn’t change his team. He just fired Corey. Manafort, an old pro as to general elections is now in charge. You couldn’t have to guys both wanting to be top dogs, countermanding each other. Nothing gets done efficiently. Corey, who was great for the primaries, couldn’t traanition to the general elections needs, something Manafort knows all about. It all worked out, and Trump’s speech knocking Hillary today was terrific.