The New Orleans Saints and the Atlanta Falcons are the last two teams standing in the NFC South and the winner of the division is yet to be decided. The two teams meet on Monday Night Football where the division title could be decided.
For the Saints, they can clinch the NFC South title and, possibly, a first round bye. To win the NFC South they have to beat win once or the Falcons lose once. It's that simple. They meet on Monday night so the Saints can clinch the division with a win there.
The Saints also have a shot at a first round bye if they win out and the 49ers lose or if they win once, tie once and the 49ers lose. So basically they're rooting for the Rams to beat the 49ers next week (and then winning out).
For the Falcons, they've already clinched a playoff spot. Winning the NFC South is considerably tougher as they'll have to win out and hope the Saints lose twice.
As it stands now, the Saints and Falcons are in.