As commander of Joint Special Operations Command (JSOC), General Stanley McChrystal discarded a century of management wisdom and pivoted from a pursuit of mechanical efficiency to organic adaptability. In this book, he shows how any organization can make the same transition to act like a team of teams – where small groups combine the freedom to experiment with a relentless drive to share their experience. Drawing on a wealth of evidence from his military career and sources as diverse as hospital emergency rooms and NASA’s space program, McChrystal frames the existential challenge facing today’s organizations, and presents a compelling, effective solution.