So the Secretary of War, adept as he is at the artifice of bold leadership, needs to be careful. He is skilled, indeed, at the task of reading lines convincingly when they’re served up on a teleprompter under the spotlights and LED panels of the Pentagon stage. Yes, the man can strut. But Pete Hegseth has to know that this show has only one actor in a lead role, and you never really know how this star will want things to play out.