Few guys on the Bucs roster have had a worse preseason than Ke'Shawn Vaughn, and it's looking like it'll cost him a job.
Vaughn came into camp as the Bucs third running back, with an outside chance to use a fresh slate to overtake Chase Edmonds as the backup to Rachaad White. That idea quickly vanished as Vaughn quite literally went backward in the preseason reps he was given.
In two games, Vaughn has 11 carries for -4 yard which is the exact opposite of what you're looking for out of a guy who needs to prove himself. Any notion that Vaughn could move into the RB2 role has gone out the window and instead, it looks like he's battling for a roster spot heading into the Bucs preseason finale.
Edmonds appears to have the backup role locked down, but Vaughn has been passed over by rookie standout Sean Tucker. There was already an outside chance that Tucker earned a roster spot in the preseason, especially since he came to camp with endorsements from Dave Canales and Rachaad White. Now it appears he'll not only earn a roster spot but it will be the one that belongs to Vaughn.
Tampa Bay is projected to carry three running backs into the regular season, and Vaughn won't be on that list unless something changes.