Based on SI's Power Rankings I have assigned a value equal to the power ranking of each opponent to determine strength of schedule. For example, playing the #1 and #2 teams equals 3 points. Playing the #31 and #32 teams equals 63 points. So the lower the total points the tougher the schedule. For the AFC North the points totals are: Bengals 273, Browns 290, Steelers 291, and Ravens 299. The Ravens last 3 games are against teams in the bottom 6 of the league. While the Bengals in their last 4 games face the Steelers (#13) twice and Denver (#2).