And while the 23-year-old running back, who rushed for 480 rushing yards, three touchdowns and 3.4 yards per carry last season, is expected to be a factor from Week 1, the concerns are enough to evaluate the rest of the running back depth.
Coach Jay Gruden did not rule out the possibility Wednesday that the team could add another veteran free agent to compete with the group.
Jones' surgically repaired hip and his fumbling issues are the main concerns. After the team moved on from Alfred Morris during free agency, it is thin on experienced running backs. Keep an eye on this situation, whomever the team gets could end up with significant work. Thompson is more used in the passing game and likely isn't a heavy-workload back.