Now, though certain franchises may disagree, you don’t have to go 0-16 to be considered a bad team in the NFL. That’s why it is crucial for us to look at one of numberFire’s signature metrics, nERD, to help us sift this out.

nERD score is our regular-season calculation of how good a team really is based on expected point differential against a league average team. For instance, if the team's nERD is -10, they would be expected to lose by 10 points against a league-average opponent. This not only shows us a value score that combines offense and defense, but it also adjusts for the era as well, giving a more accurate representation of value across multiple years. For more info on nERD, check out our glossary.

Each team earns a nERD score every year. We simply want to look at the worst ones over the last 10 years.