Fantasy Upside
C.J. Spiller is still considered the No. 1 running back in Buffalo and for good reason. His talent level is up there with the best in the NFL. Two seasons ago he ran for 1,244 yards and averaged 6.0 yard per carry. He also was a threat in the passing game. The biggest strength of Spiller is his game speed. He is one of the faster running backs to the hole and can make people miss.
Fantasy Downside
The biggest issue in his positives was the wording 'two years ago'. Spiller's numbers were down in 2013. His yardage total fell to 933 and his yard per carry also fell to 4.6, which is still a decent stat. He dealt with an ankle injury that was lingering throughout the year so that might be an excuse for the step backward. Another issue is Spiller and touchdowns. He only had two and never carried the ball inside the 5 yard line.
Bottom Line
Spiller ranks 16th in standard leagues and 19th in PPR leagues in running back rankings. There is some concern about his touches. Fred Jackson is back and the Bills also acquired Bryce Brown. But a healthy Spiller is still the best option for the Bills at RB. If he can stay healthy, Spiller has legitimate RB1 upside. He's a boom or bust pick in the 4th round.