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.