Michael Lewis’ latest novel, The Blind Side, is part-sport, part-economics, part-psychology, and part-sociology. While writing an article about his high school baseball coach that was published as the novella Coach, he re-connected with teammate Sean Tuohy, who was adopting a 6-5, 350 pound offensive lineman who played left guard for the Briarcrest Christian School football team that Tuohy coached. That student-athlete, Michael Oher, became a living example of how sport and money have become intertwined while the rich and poor and black and white have grown apart. At the beginning of the book, Oher is a marginal student and physical …