The NFL playoff picture is coming into focus, but plenty of questions remain. In fact, the Week 17 NFL Power Rankings have a question for every team. Meanwhile, the contenders for the top seed in the AFC are starting to move up the rankings while the top teams in the NFC are showing some cracks.
1. Buffalo Bills (12-3)
Last week: 2
Sunday: Beat New England Patriots 24-21
The big question: Is the defense good enough?
The Bills have given up an average of 35.7 points in the last three games.