You just look at the NFL , the days of consistantly running your RB 25 times a game are not going to happen. You will get a "magical" season or two where a RB and his OL just stay on the same page and have a great winning season but they are far and few between. Todd Gurley will do much better when A] the O Line finaly figures it out and B] when defenses actualy have to respect a passing game where the QB and WR's actually demand respect and attention.