STEVE NESIUS/Associated Press
No team was forced to learn the importance of depth at running back last year more than the Bucs.
Doug Martin was lost for the second half of the season thanks to a torn labrum, ending what was already a frustrating sophomore season for the Boise State product who racked up nearly 2,000 total yards as a rookie in 2012.
Enter Mike James, who rushed for 158 yards against the eventual Super Bowl champion Seattle Seahawks in his first start after Martin's injury. James was averaging eight yards per carry the following week against the Miami Dolphins when a fractured ankle ended his season, as well.
Waiver-wire pickup Bobby Rainey stepped in as the Bucs' go-to back down the stretch, turning in a pair of 100-yard rushing performances and scoring five times on the ground in eight games with the team.
All three backs return at full strength in 2014, but that didn't stop the team from adding Charles Sims in the third round of the draft. Sims is especially skilled as a receiver, and the new coaching staff is excited about what he brings to the table.
For now, I would expect the Bucs to try to keep all four, meaning they would have to move Jeff Demps to receiver if they want to keep him. Don't rule out a trade for either Rainey or James, though.
Jorvorskie Lane is better suited as a lead blocker than Lonnie Pryor, so I expect him to make the roster as the team's only fullback.