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.

Now Playing:

Fox 9's Dawn Mitchell sits down with Vikings player Case Keenum.

Media: Fox9

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. He was the NFC Offensive Player of the Month for November, and he has the Vikings at 10-3 and on the verge of winning the NFC North title.

Browse through the photos above to see how all of Bill O'Brien's former quarterbacks are doing at their current locations.