Dave Dickenson plans on using a dual RB system.

The two running backs will be splitting time at the position.
“We have it listed that way because Terry’s our primary returner, but I would expect that position to ride the hot hand and let both of those guys (carry the ball) … they both need action to get better,” Dickenson said at a Friday morning media availability at McMahon Stadium. “They’re too raw, too young … and they both need action.” ...

Running back was debatably the most closely-watched position battle during training camp, as the Stamps brought in four Americans to fight for the job that was vacated when Jerome Messam was allowed to explore free agency and sign with the Saskatchewan Roughriders.
Both Williams and Jackson came into training camp and put together strong pre-seasons.
Williams led all Stamps running backs with 47 yards on five carries in the team’s first pre-season game against the B.C. Lions, while Jackson’s 18 yards on six carries was the most by a Stamps running back in Game 2 against the Saskatchewan Roughriders. But Williams also separated himself from the pack at kick returner, and his new responsibilities at that position mean the Stampeders coaching staff needs to make sure not to overload him.

“With Terry returning, and who knows how long the first turn goes, anyways, we’ll just let him get into the game (through kick returns) and let Don get into the game by taking the first series,” Dickenson said. “Other than that, it will just be a split.”
Whether the Stampeders want to go the whole season with the duo splitting time or not is anyone’s guess, their decision to play with Williams and Jackson as a tandem shouldn’t be seen as the coaching staff having a lack of faith in either guy.


http://calgarysun.com/sports/football/cfl/calgary-stampeders/stamps-roll-with-williams-jackson-running-back-duo