He’s just not an executive. Has never run anything.
You do know he has a multi million dollar stake in “never run anything.”
Have you any idea, at all, what it takes to handle the staff to manage being an actor, a part time lobbyist, a Senator, and a lawyer?
Besides, FRed is a self made man, against the odds, he has become quite successful in several different professions, unlike Mitty and his family money tree.