Both the Cleveland Browns and Tenessee Titans are 3-12, they can secure the 1 and 2 spots by losing.
The Cowboys, Chargers, and 49ers are all 4-11, this should be interesting.
One game to watch out for is the Seahawks Cardinal game. I think the easiest road to the Superbowl for the Seahawks is maintaining the 6th seed by losing. They will get either Packers or Vikings in the 1st road, both teams they could beat. Then eliminate Carolina in the 2nd round and carry that momentum into Arizona in the NFC Championship game.