The NFL's irreplaceable players
Peyton Manning, Ware top list of essential stars
In the NFL, star players are considered irreplaceable until proved otherwise. Take Tom Brady: The 2007 NFL MVP would've topped any list of the most irreplaceable players in football this time last year, but by the end of the season, Matt Cassel was considered to be an adequate impersonation of the guy who had put up the best season of any quarterback in NFL history.
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With the Super Bowl in the books, Football Outsiders starts looking ahead to 2010 and the biggest issues every NFL team will be facing.February 10: Plugging the Holes - AFC West February 11: Plugging the Holes - NFC West February 12: Plugging the Holes - AFC North February 15: Plugging the Holes - NFC North February 16: Plugging the Holes - AFC East February 17: Plugging the Holes - NFC East February 18: Plugging the Holes - AFC South February 19: Plugging the Holes - NFC South