Raiders
The Houston Texans, with a record of 2-14, had the worst season in the 2013 NFL regular season.
As of November '09 the St. Louis Rams are the worst team.
Detroit lions
the broncos are the worst team in the NFL they will end this season as 2-14
The Saint Louis Rams had the worst record in the 2009-2010 season, they ended their season 1-15.
seahawks
Pittsburgh Steelers
In the NFL, that was 1-15 by the St. Louis Rams.
The Carolina Panthers finished the 2010 season with a 2-and-14 record.
The Pittsburgh steelers, with a record of 1-13
2008-2009 san Diego chargers
bears