I've been going back and forth on this one for a week and I'm still not sure I have a decision. I think NIU covers the +10 spread, but Marshall wins. Comes down to how well NIU can keep up with Marshall. I think they'd have to put up more than 35 to win the game at the least.
I don't think this hits the over/under of 67. Marshall's defense was pretty good the entire year until the WKU game, and even then, they rebounded to hold La Tech to around 260 yards.