The victors write the history books so FDR was always safe and Marshall had a fawning biographer who would preserve his legacy. The U.S. knew that war with Japan was imminent and perhaps goaded Japan to attack American resources. COS Marshall bore the responsibility for making sure the U.S. forces were prepared for attack and ended up blaming subordinates for his negligence. For some reason FDR called an old WW1 general who had retired as COS out of retirement to be the front line commander of the area most likely to be attacked. Apparently MacArthur thought of himself more as a political envoy than a front line combat commander because he lost his entire Army four months into hostilities and was rescued and awarded the MOH while his Troops were left to surrender and die of starvation on Corrigador and Bataan.