The Dallas Cowboys still have a lot of questions at running back. Ezekiel Elliott is back, but his yards per game has gotten lower every year he’s been in the league. Last season he had his lowest yards/carry (3.5) and lowest success rate (45.1%) of his eight-year NFL career. Rico Dowdle could get a heavier workload, but can he endure the extra work? Last year, Dowdle was healthy for the first time in four years but had less than six rushing attempts per game. The team also has free agent Royce Freeman and second-year back Deuce Vaughn, but no one expects too much from these guys.