It is always impressive when a former athlete goes on to great business success in a field outside of his or her sport. That is exactly what former Detroit Piston Vinnie Johnson has been able to do. After retiring from the NBA in 1992, Johnson founded a company called Piston Automotive. This auto supply venture has been a winner, and Johnson continues to serve as the company’s chairman. Although Johnson enjoyed an impressive basketball career, it could be argued that he has actually been more successful in the garage than he was on the hardwood.