“No one has yet figured out how to manage people effectively into battle; they must be led,” wrote John Kotter
Most of the concerns we hear about iterative development involve fears that an iterative approach will result in an ineffective architecture or design. Where do people get the idea that all good design happens at the beginning of a project? Many people involved in developing products understand that great designs evolve over time. The more complex the system, the more important design evolution becomes.