I'm not sure waterfall method applies. It's a great line, but I think you're confusing planning and preparation for waterfall. Creating a plan and collecting t

I'm not sure waterfall method applies. It's a great line, but I think you're confusing planning and preparation for waterfall. Creating a plan and collecting the resources to execute that is not disjoint from agile principles. In fact, the amount of leeway given to the troops upon landing to determine the best course of action was imperative to the success of the landing. In a sense, Eisenhower made a plan; collected the people and resources to execute it; and then got out of the way as it was successfully executed. Each unit of the landing parties operated at that point as scrum teams, with all the necessary and redundant team members to execute the mission.