for starters ~ he can play all the games. doesn't have to be 100% , just needs to WANT TO / HAVE TO be there. i'd give him full credit for 16 out of 17 with accolades. i noticed this with sjax and gurley in their 1st two years ~ they got dinged and sat out what seemed to be for minor stuff. but by year 3 they were like , whatever, i'm going out there.
2nd, he has to be a respectable pass blocker. an rb can not put his qb in harms way under any circumstances.
3rd ~ touchdowns. needs to score catching or running 60+% of the the time the opportunities present themselves to him.
~ yardage per attempt. certainly want to see him run for more yardage than catch but in either event his averages need to be high. like 6 to 7 high.