What They Don't Teach You At Harvard Business SchoolMark McCormack, dubbed 'the most powerful man in sport', founded IMG (International Management Group) on a handshake. IMG was the first and remains the most successful sports management company in the world, becoming a multi million dollar, worldwide corporation with activities in the business and marketing spheres that are so diverse as to defy classification. Here, Mark McCormack reveals the secret of his success on key business issues such as