'Perhaps most amazing: Bush's season-long struggles are taking place on the league's most efficient rush offense, according to Football Outsiders' metrics, one that averages 171 rushing yards a game. LeSean McCoy leads the way with 1,267 yards and a 5.4 yards-per-carry average, and he's followed by Tyrod Taylor (580 yards, 6.1 YPC), Mike Gillislee (577 yards, 5.7 YPC), Jonathan Williams (94 yards, 3.5 YPC) … and Bush.'