The fear of big mistakes or falling behind schedule is what motivated most of the project management processes used around the world. The more experienced that managers are, the longer the list of bad things they've seen that they're trying to avoid. This is what I call defensive management, since it's designed to prevent a long list of bad things from happening. Defensive management is blind to recognizing how obsessing about preventing bad things also prevents good things from happening or sometimes even prevents anything from happening at all.
