New York Times bestselling, award-winning historian S.C. Gwynne tells the incredible story of how Hal Mumme and Mike Leach—two unknown coaches who revolutionized American football in the 1980s, 1990s and 2000s—changed the way the game is played at every level, from high school to the NFL. Whether you’re a casual or ravenous football fan, this is a truly compelling story of American ingenuity, innovation, and how a set of revolutionary ideas made their way into the mainstream of sports culture that we celebrate today.