Researchers at the Harvard Business School recently concluded a three year, $7.6 million study of American corporate workers. The study, a 23,000 page document, which focused on the recreational preferences of those workers, is summarised below.1. Sport of choice for maintenance level employees: bowling.2. Sport of choice for front line workers: football.3. Sport of choice for supervisors: baseball.4. Sport of choice for middle management: tennis.5. Sport of choice for corporate officers: golf. CONCLUSION: The higher you are in the corporate structure, the smaller your balls.