Peyton Manning (Photo by Garrett W. Ellwood/Getty Images)
San Diego Chargers (7-9)
Oakland Raiders (4-12)
Kansas City Chiefs (2-14)
Washington Redskins (10-6)
New York Giants (9-7)
Dallas Cowboys (8-8)
Philadelphia Eagles (4-12)
Green Bay Packers (11-5)
Minnesota Vikings (10-6)
(Photo by Andy Clayton King/Getty Images)
Chicago Bears (10-6)
Detroit Lions (4-12)
(Photo by Gregory Shamus/Getty Images)
Atlanta Falcons (13-3)
Carolina Panthers (7-9)
New Orleans Saints (7-9)
(Photo by Chris Graythen/Getty Images)
Tampa Bay Buccaneers (7-9)
San Francisco 49ers (11-4-1)
Seattle Seahawks (11-5)
St. Louis Rams (7-8-1)
Arizona Cardinals (5-11)
This year's quarterback carousel happened in Arizona, where head coach, Ken Whisenhunt, started four different players at the position. The Cardinals managed four straight wins to start the season with Kevin Kolb at the helm. But he went down in week six, and the Cardinals started their downward spiral after that. The subsequent nine-game losing streak, with the three other starting QBs, resulted in Whisenhunt's firing at the end of the season. (Photo by Christian Petersen/Getty Images)