If your Houston Texans beat the Buccaneers in Tampa Bay tomorrow, they win the AFC South and will host a playoff game on January 4th or January 5th. What happens between the Saints and Titans on Sunday in Nashville won’t affect the Texans if Houston wins tomorrow afternoon to improve to 10-5.
If the Texans lose to the Bucs, they can still win the AFC South if the Saints beat the Titans on Sunday. Not the way you’d like to see them do it, of course, but a division title is a division title.