I feel as though I have come up with a fairly simple methodology for figuring out the best team in NFL history. My hope is that it does not come off as too complicated. The basic premise is to pick a handful of NFL team statistics, average the statistics to a percentage, and average those percentages to one overall power value.
Here are the 5 quantitative factors I used to determine the best team in NFL history, with the 1985 Bears used as the primary example.
1. Wins from Average- number of games played per team divided by two -Example: 15(Bears total wins) - 8(average NFL team wins)= 7
2. Turnover Differential - takeaways minus giveaways -Example: +23
3. Offensive Yards Per Game from Average - team average offensive yards per game minus average NFL team yards per game -Example: 365 (Bears average yards per game) - 329 (NFL average team) = 35
4. Defensive Yards Per Game from Average - - team average defensive yards per game minus average NFL team yards per game -Example: 329 (NFL average team) - 258 (Bears average yards per game) = 71
5. Average Margin of Victory- number of points scored minus number points allowed divided by number of games - Example: 456 (points scored) - 198 (points allowed) / 16 (games played) = 16.13
After I inputted all of the data from the SuperBowl winners and losers for these 5 factors, I realize that each factor did not carry an equal weight. Each factor was given a 100% maximum possibility based on historic data. Each team was then given a percentage based on that maximum possibility:
Maximums (1985 Bears %)
1. Wins from Average - 8 (7/8=88%)
2. Turnover Differential - 30 (23/30=77%)
3. Offensive Yards Per Game from Average- 100 (35/100=35%)
4. Defensive Yards per Game from Average - 100 (71/100=71%)
5. Average Margin of Victory - 20 (16.13/20=81%)
The average of these five percentages represent a team's Power Quotient:
1. 1985 Bears - 70.24% = ( 88+77+35+71+81 / 5 )2. 1972 Dolphins - 69.63%
3. 1983 Redskins - 67.66%*
4. 2007 Patriots - 64.22%*
5. 1991 Redskins - 61.41%
*did not win SuperBowl See the results file to view the Power Quotients' for all of the past SuperBowl Winners and Losers.The full data/results file will be located in the Documents Box^ (right side of blog). ^I will be updating this file periodically with results and data for every NFL team by year.