Since 1876, approximately 16,000 young men have enjoyed at least a taste of glory by appearing in big league games, many of them only a few times. By the end of the 2009 season, out of the millions who have aspired, fewer than three thousand individuals had had the good fortune to be a major league regular for five or more seasons. The median age at which they hung up their spikes was 35. However, 197 men played in their last big league contest...