In 2014, I came up with the Billick Index and the Coryell Index, which provide a simple measure of the degree to which a team is one-sided.

Let’s use the 2015 Broncos as an example. Denver’s offense scored 32 touchdowns this year, while the average offense scored 37.7. As a result, Denver’s offense was 5.7 touchdowns below average. Meanwhile, the defense allowed only 29 touchdowns, meaning the Broncos were 8.7 touchdowns below average here. Add those two together, and there were 14.4 fewer offensive touchdowns scored in Denver games than in the average 16 games in 2015.

That would put Denver pretty high on the Billick Index, which measures touchdowns scored at lower rates than average. The strongest Billick Index team was the Rams, who finished in the bottom five in offensive touchdowns scored and whose defense ranked in the top five in touchdowns allowed. There were just 55 touchdowns scored in St. Louis games this season.

But the Rams were not the most extreme team this year. Consider that the Saints allowed more touchdowns to opposing offenses — 57 — than offensive touchdowns scored in Rams games on both sides of the ball!

Rk Tm Off Def Off Def TD Above Avg. 1 New Orleans Saints 48 57 10.3 19.3 29.6 2 New York Giants 41 46 3.3 8.3 11.6 3 Carolina Panthers 54 32 16.3 -5.7 10.6 4 Detroit Lions 40 45 2.3 7.3 9.6 6 Arizona Cardinals 51 33 13.3 -4.7 8.6 6 Jacksonville Jaguars 40 44 2.3 6.3 8.6 6 Philadelphia Eagles 38 46 0.3 8.3 8.6 8.5 New England Patriots 50 32 12.3 -5.7 6.6 8.5 Buffalo Bills 42 40 4.3 2.3 6.6 10 Tennessee Titans 35 45 -2.7 7.3 4.6 11.5 Washington Redskins 39 40 1.3 2.3 3.6 11.5 Miami Dolphins 35 44 -2.7 6.3 3.6 13 Oakland Raiders 41 37 3.3 -0.7 2.6 14.5 Pittsburgh Steelers 42 35 4.3 -2.7 1.6 14.5 Tampa Bay Buccaneers 34 43 -3.7 5.3 1.6 16.5 Cincinnati Bengals 49 26 11.3 -11.7 -0.4 16.5 Indianapolis Colts 32 43 -5.7 5.3 -0.4 18 Chicago Bears 34 40 -3.7 2.3 -1.4 20 New York Jets 44 29 6.3 -8.7 -2.4 20 Atlanta Falcons 34 39 -3.7 1.3 -2.4 20 San Diego Chargers 34 39 -3.7 1.3 -2.4 22 Green Bay Packers 39 33 1.3 -4.7 -3.4 23 Kansas City Chiefs 39 32 1.3 -5.7 -4.4 24.5 Houston Texans 36 34 -1.7 -3.7 -5.4 24.5 Cleveland Browns 25 45 -12.7 7.3 -5.4 26 Baltimore Ravens 29 40 -8.7 2.3 -6.4 27 Seattle Seahawks 44 24 6.3 -13.7 -7.4 28 San Francisco 49ers 23 41 -14.7 3.3 -11.4 29 Minnesota Vikings 32 31 -5.7 -6.7 -12.4 30 Denver Broncos 32 29 -5.7 -8.7 -14.4 31 Dallas Cowboys 24 35 -13.7 -2.7 -16.4 32 St. Louis Rams 27 28 -10.7 -9.7 -20.4

St. Louis is your “half-team” of the year without much doubt, at least according to these indexes. A more advanced approach would be to use something like DVOA, and there the results get pretty interesting. New Orleans had an offensive DVOA of 10.5% and a defensive DVOA of 26.10%, which sums to 36.6%. No other team combined to even a positive 20%. Meanwhile, Denver was at -8.8% on offense and -25.8% on defense which sums to -34.6%. The Rams (-15.0%, -10.5%, -25.5%) were the only other team whose units summed to less than -20.0%.

Given the Broncos playoff effort, where the defense largely carried the team, it’s pretty easy to argue that Denver, rather than New Orleans, was the most one-sided team of the year. What do you think?