CBS Sports ranks NIU 94th in the FBS this year: which IMO is generous. They are not a good football team by any imagination. They handled the Redbirds just fine beating them 24-10. I think the Bison can match that and maybe score a few more points.
Their passing game was weak to begin with, Davis completion % is around 50, and he has 4 TD's and 4 int's, and with the loss of the top two receivers, this allows the Bison to take even more liberty in favor of run defense. James Robinson is very good and Davis himself is a weapon in the run game; that, coupled with the Bison weakness at two LB positions gives them a chance to score some TD's, but I would only give them two. Even if Brady Davis has his best game of the year....maybe three.
I think we are going to see some turnovers, so I'm going with 39-17 Bison win!