and North Dakota State always plays close,
They do better than that. 6-3 vs FBS and 3 straight wins over FBS teams (they definitely aren't the top BCS schools - but still a good accomplishment). Here's there performance against FBS schools since moving up from D-II: 2006: 29-24 over Ball St
; 9-10 loss to Minnesota 2007: 44-14 over Central Michigan; 27-21 over Minnesota
2008: 13-16 loss to Wyoming 2009:
17-34 loss to Iowa St 2010: 6-3 over Kansas
2011: 37-24 over Minnesota
2012: 22-7 over Colorado St
I honestly have no idea why Minnesota would ever schedule them again.