Cadillac Williams tops Bucs' depth chart

The Tampa Bay Buccaneers added a 1,000-yard rusher in the off-season. Yet he's not their starter to enter the season.
Instead, according to the Bucs' updated depth chart (via Stephen Holder of the St. Petersburg Times), the running back to enter the season as their starter had only 233 yards in six games played last year.
The Bucs' depth chart at running back is as follows: (1) Carnell "Cadillac" Williams, (2) Derrick Ward and (3) Earnest Graham.
According to Holder, coach Raheem Morris says that the Bucs will continue to employ the "2-2-1" strategy they used in the third pre-season game when the season starts. So, in other words, Williams will be the running back for the first two series, then Ward for the next two series and Graham for the fifth series. And then they will repeat the rotation.
Although Williams has played only ten games in the past two seasons, but he ran strong in his only pre-season game.
Provided that all three backs stay healthy, it looks like all three will be mediocre (at best) fantasy options considering none of the three backs should get much more than 40 percent of the team's carries under their 2-2-1 platoon. And Graham, who will get the fewest carries, will likely get the goalline touches.