http://sportsranks.net/top-5-ncaaf-sleeper-teams/6/ Sportsranks.net gives their top 5 sleeper teams of 2013. The three B10 schools listed are Iowa, NW and Purdue. Honestly I agree with Purdue being an under the radar team. With Akeem Hunt at RB and Ricardo Allen in the secondary with their line this year which should be pretty strong I think Purdue could be a Leaders division contender. Should they beat OSU that division is theirs! Also Robert Marve is strong in the spread and has given OSU fits as of late.