Iowa is the only team in the B1G and FBS to only use one running back. Every team in the conference uses at least 2 and most use 3-4 a game. I went further and looked at the top25, the SEC, the Pac-10 and several more and it was interesting that they all use 2-8 running backs a game. Just thought it was interesting. Coker is a monster but a change of pace or a breather seems the norm. Any comments?