The Texans have had 10 different starting quarterbacks in Bill O'Brien's four seasons in Houston. Surprisingly, all 10 of those quarterbacks are still in the NFL and five of them have started games this season.
Most of those guys are all backups with other teams and have only started when pressed into duty because of an injury, but Case Keenum is the exception.
Originally, Keenum started for the Vikings because of an injury to Sam Bradford, but now he's the bona fide starter for one of the best teams in the league.
The guy who set all kinds of passing records at the University of Houston and became a fan favorite with the Texans, despite not experiencing a lot of team success, is looking like the comeback story of the year.