First, I would like to thank each of the contributors for their hard work on this book. Thanks also to Anne Dean Watkins, Steve Wrinn, and everyone else at the University Press of Kentucky, all of whom were great to work with throughout each phase of the production of this book. I also appreciate the feedback from two anonymous referees for the press, including the one who provided the phrase “going deep,” which found its way into the title. Thanks also to my wife, Dawn, and our daughters Haley, Emma, and Sophie for their encouragement and love, and for enduring my rants about my beloved Kansas City Chiefs! Finally, I would like to thank my parents, who, by their time, money, effort, and love, helped me come to love this great sport. It is to them that I dedicate this book.