Either every other year or do a Dakota rotation where 1 year you play @ NDSU the next you play host to USD then the following year you have @SDSU, then just complete the circle vs NDSU, at USD, vs SDSU. We only need to fill 3 spots and usually 1 of those is for an FBS team so stick 1 of these Dakota teams for an OOC game and you have 1 team to fill.