Another possibility could be bringing in Javorius “Buck” Allen as competition for the third running back spot. Allen has also shown plenty of ability with 350 carries over five years. Four of those years came in Baltimore and last season was with the New York Giants.
In his rookie season, Allen started six games for the Ravens. He gained 512 rushing yards that year and scored one touchdown. On top of that, he saw 62 targets through the air and caught 45 of them for 353 yards and two touchdowns. Although he never saw the same type of production in a season, he proved he could handle a larger load if needed.
Allen will be 29 in 2020, therefore he should receive just a cheap one-year contract. He might even only deserve a veteran minimum at this point. With Allen, I would not just give up on Ryan Nall, but I would bring Allen in as competition. He would make for a solid change-of-pace back too with his receiving ability.
In fact, that aspect of his game could separate him from Nall in a competition. Over his five years in the league, Allen has caught 130 of his 171 targets for a 76.0 percent completion percentage. That would look solid as a third running back behind David Montgomery and Tarik Cohen.