Probably because mismanaged transitions are very, very embarrassing. I think of how the only American President to take the oath of office on a Catholic missal

Probably because mismanaged transitions are very, very embarrassing. I think of how the only American President to take the oath of office on a Catholic missal was Lyndon Johnson - who mistook Kennedys missal for a Bible. Not the biggest thing in the world - but people are watching and problems will be magnified out of proportion and talked about for centuries. Nobody wants to be played as an incompetent civil servant in a Netflix tv show 50 years from now.