Take a look at what Mostert has done over the last couple of seasons: In his last 16 games, including the playoffs, he has 221 carries for 1,236 yards (5.59 yards per carry) and 13 touchdowns and has added 25-233-2 as a receiver. The resulting 15.6 PPG (half-PPR) is about what Jonathan Taylor scored as last year’s No. 9 running back. Some fantasy analysts label Mostert as a system back, and maybe that’s true to a certain extent, but system backs don’t register the two fastest speeds for a ballcarrier in a given season, per NFL Next Gen Stats. Kyle Shanahan may be able to turn any running back into a star, but he’s also smart enough not to shelve this sort of production just to force-feed his third-round rookie, Trey Sermon.