Donovan McNabb hasn't been consistent this season, which brings up talk that the quarterback may not be back in Philadelphia next season. (Photo by Howard Smith-US PRESSWIRE)

Personal problems off the field have been a huge distraction for Eagles coach Andy Reid. (Photo by Eric Hartline-US PRESSWIRE)

After Rex Grossman was benched, Brian Griese took over, but the play at the quarterback position wasn't improved and the offense continued to struggle. (Photo by Phil Carter-US PRESSWIRE)

After a terrible start to the season, the Bears benched Rex Grossman. (Photo by Kirby Lee/Image of Sport-US PRESSWIRE)

Once one of the most feared units in the NFL, the Bears defense hasn't been nearly as stout as it was in last year's Super Bowl run. That includes a Week 4 loss to the Lions in which the Bears allowed an eye-popping 34 points in the fourth quarter. (Photo by Scott Boehm/Getty Images)

The Saints' dangerous thunder-and-lightning backfield of Deuce McAllister and Reggie Bush took a serious hit when McAllister was lost for the season with a knee injury. (Photo by Al Messerschmidt/Getty Images)

After an MVP-type 2006, Drew Brees has run hot and cold this year (1 TD, 9 INTs in the first four games; 13 TDs, 3 INTs in the next five). (Photo by Matt Stamey-US PRESSWIRE)

Jake Delhomme's injury forced the Panthers to go with ineffective (David Carr), aged (Vinny Testaverde) or inexperienced (Matt Moore) quarterbacks. (Photo by Dale Zanine US PRESSWIRE Copyright)

The struggles from David Carr's time in Houston have carried over to Carolina, having been sacked 12 times in five games (three starts). (Photo by Harry How/Getty Images)

Carolina's quarterback problems got so bad that the team brought 44-year-old Vinny Testaverde out of retirement. (Photo by Dale Zanine US PRESSWIRE)

Game-winning kicks by Jason Elam saved the Broncos from being an even bigger disappointment. (Photo by Doug Pensinger/Getty Images)

Without Rudi Johnson in its backfield, Cincinnati's talented offense hasn't been as potent as expected. (Photo by Jim McIsaac/Getty Images)

Once one of the NFL's best quarterbacks, Steve McNair is having a terrible 2007 season. He's thrown just two touchdown passes, with four interceptions, and has been sacked 11 times. (Photo by Jason Bridge-US PRESSWIRE)

An ineffective Chad Pennington has been benched in favor of an untested Kellen Clemens. (Photo by Al Bello/Getty Images)