17. Warren Moon
After a stunning career in Canada, the Houston Oilers brought Moon to Texas where he starred for many seasons. Selected for the Pro Bowl nine times, Moon never won a Super Bowl. However, all good things come to an end and Moon finally went on the decline.
He spent a few years in Minnesota and then a couple more in Seattle. But at the age of 43, he joined the Kansas City Chiefs as a backup quarterback. There is a time when you need to know when to stop. In the end, he only started three games for the franchise before retiring.