If only he got 20-25 touches a game...
If only he wasn't the second best RB on the team
FJax has his merits for sure, but Spiller has been much more productive than him on a per touch basis for the past two years. Even with a high ankle sprain last year.
2013
Spiller: 202 carries, 933 yards, 4.6 y/a, 2 TDs
Jackson: 206 carries, 890 yards, 4.3 y/a, 9 TDs
I think the +7 edge in TDs is a bit more impressive than the 43 extra yards. Their workload running the ball was almost identical, although Fred had to take on more of the short-yardage duties, which are going to hurt your averages anyway.
Spiller's 2012 was amazing and he's an incredible talent, but Jackson is just a really good all around back and generally underrated by a lot of people.