Devin Singletary/Zack Moss
The ground game of the Buffalo Bills was very underwhelming in 2020. Running backs Devin Singletary and Zack Moss combined for 1,168 rushing yards in 2020; the Bills, on the whole, finished 20th in the league in rushing last season.
Over the last couple of seasons, the Bills have been lacking a true speed threat that can rip off a couple of long touchdown runs per season.
That may change for the Bills in 2021 however, because the Bills signed Matt Breida in the 2021 offseason. Prior to his 2020 season in Miami, where he was severely underutilized, Breida had back-to-back seasons in San Francisco where he averaged over five yards a carry and ripped off career-long touchdown runs of 83 and 66 yards in 2019 and 2018 respectively.
Breida is one of the fastest players in the league; on the 83-yard touchdown run he registered in 2019, Breida topped out at 22.3 miles per hour.
The longest run between both Singletary and Moss through their combined three seasons in the league is a 51 yard run from Singletary.
Singletary and Moss serve different roles as running backs than Breida does. Singletary is a shifty back that gains yardage by using lots of cuts and jukes to create space. Meanwhile, Moss is a power back that uses his toughness and strong build to pick up yards.
Both Moss and Singletary are decent roles, but neither has proved to be capable of providing a quick strike spark to an offense like Matt Breida has.
If Breida can provide the Bills the same spark he did for the 49ers, the Buffalo offense will be even more of a nightmare in 2021 than they were in 2020. If he shows this level of play during training camp, either Singletary or Moss will suffer as a result.