Basis for above.
In six B1G games each, Iowa averages 13.5 points per game and allows 14.3 points per game. They have played PSU, MSU, Purdue, Wisconsin, Minnesota and Northwestern. In each game, except MSU, Iowa held their opponent to under their average points scored, for an average of -6 for all six teams. On Offense, Iowa underperformed in every single B1G game versus their opponent defense, for an average of -10.3 points versus opponent defenses.
Rutgers averages 19.7points per B1G game and allows 22.5 points per game. Played Michigan, MSU, Indiana, Wisconsin, Ohio State, NW. In 3 games Rutgers allowed B1G opponents more points than their average and held 3 opponents under their average. On offense, on after, Rutgers was very close to the average points allowed by each B1G team they played (less than 1 point per game below average).
So- Rutgers is 14 points (19.7 minus 6); Iowa 6 (13.5 points minus 10.3) put in fudge factor and they score 6 or 8 points.