If you think certifying your project managers in Scrum is going to topple your bureaucracy, you’re in for some major disappointment. Agility is a mindset, not a tool set. It’s a piece of the puzzle, not the whole thing. It is necessary but not sufficient. The man who grasps principles can successfully select his own methods. The man who tries methods, ignoring principles, is sure to have trouble. —Harrington Emerson