Host Ian Hartitz is joined by PFF problem child Dwain McFarland to break down Dwain's rookie running back tiers ahead of the NFL draft. The guys touch on a number of running backs including: Breece Hall, Isaiah Spiller, Kenneth Walker, James Cook, Zamir White, Brian Robinson, and much more, specifically talking about each player's ability to handle a three-down role at the next level. It was a great day to be great and talk running backs for an hour on another edition of The PFF Fantasy Football Podcast.