In this powerful book, McChrystal and his colleagues show how the challenges they faced in Iraq can be relevant to countless businesses, nonprofits, and other organizations. The world is changing faster than ever, and the smartest response for those in charge is to give small groups the freedom to experiment while driving everyone to share what they learn across the entire organization. As the authors argue through compelling examples, the team of teams strategy has worked everywhere from hospital emergency rooms to NASA. It has the potential to transform organizations large and small.