Even if Gurley is full go come Week 1, Mason will likely still play a significant role within the offense. The Auburn product led the Rams with 765 yards rushing in 2014 -- a total that was second among all NFL rookies.
With the news breaking today that Gurley will be on the active roster for the start of camp, and considering the pick the team spent on him, one would think Gurley gets the starting nod unless he loses the battle in camp. But the Rams site isn't ruling out the possibility the team brings Gurley slowly along and perhaps sticks with Mason at least to start to season. Either way, we see the eventual value in Gurley over Mason. The Rams do want to be a run-first team so there still could be some value in owning Mason in deeper formats.