Head coach: Tom Flores
There a lot of teams on this list who had really bad offenses. But the 1992 Seahawks probably had the worst of this entire bunch. During the 1992 NFL season, Seattle scored just 140 points (that's less than nine points per game!) and only managed to string together 1,778 passing yards. Strangely, the Seahawks did have a great defense—defensive tackle Cortez Kennedy was named the NFL Defensive Player of the Year in 1992—but their D couldn't help Seattle avoid finishing with the lowest winning percentage in franchise history.