The Detroit Lions entered the season with one of the weakest strength of schedules in the NFL. After five games, their opponents — all 14 teams they play, not just the first five — have the second-highest winning percentage in football (.576).
In another reminder of how quickly things change in the NFL (for everyone but the Lions, it seems), the NFC East and AFC East look like the two toughest divisions in football. They are the only divisions with three teams above .500, and the top teams in each conference, the Philadelphia Eagles in the NFC and Buffalo Bills in the AFC, reside in those divisions.