Harry Truman's decision to fire Douglas MacArthur at the height of the Korean War in April 1951 shocked the American political system and astonished the world. Much of the world didn't realize the president had the power to fire a five-star general; much of America didn't realize Truman had the nerve.
When you tell a story, there are imperatives of structure, of style, of pacing and all of this, that are there simply because you want to make it a good story. When do you introduce your characters? When do you put them onstage, when do you take them off the stage? How do you weave the different threads of the narrative together?