Once a showcase for amateur athletics, the Olympic Games have become a global entertainment colossus powered by corporate sponsorship and professional participation. Stephen R. Wenn and Robert K. Barney offer the inside story of this transformation by examining the far-sighted leadership and decision-making acumen of four International Olympic Committee (IOC) presidents: Avery Brundage, Lord Killanin, Juan Antonio Samaranch, and Jacques Rogge. Blending...