Let's clear some things up here. He had 8 TDs.
2016 Backup RB (a street FA cut from Arizona's PS): 5.7 YPC, 7 20+ Yard Runs, 8 TDs
2015 Backup RB (a 5th round rookie): 5.6 YPC, 5 20+ Yard Runs, 7 TDs
EDIT: If we want to add Receiving TDs our 2016 backup had 1 and our 2015 backup had 2, so 9 total TDs each.