This total is too low given the Bears want to boost up Mitch Trubisky for the off-season and the game is being played indoors on carpet. 
The Vikings will be playing second-stringers. That cuts both ways. The Vikings are going to be much weaker defensively without their star defensive players. Trubisky doesn't lack weapons with Allen Robinson, Anthony Miller, David Montgomery and Tarik Cohen. 
There is no reason for the Bears to be conservative. They should do all they can to pump up Trubisky's confidence. 
The Vikings catch a break with Bears run-stuffing defensive tackle Akiem Hicks ruled out.