The Buffalo Bills are on pace to be the worst offense in modern NFL history.
The 2018 season has been a historic one for offense. But perhaps the most historic offense is the worst one in the league. The lows of the Bills are as impressive as the highs of the Kansas City Chiefs and Los Angeles Rams, especially once you adjust for era.
Football Outsiders' DVOA (defense-adjusted value over average) ratings break down every play individually, looking for success based on down and distance, and adjusting based on situation and opponent.