It is often said that quarterback is the most important position in football, and possibly all of team sports. If that is the case, then there should be a correlation between good quarterback play and winning, and bad quarterback play and losing. In the table below I show each NFL team's passing stats since the Cleveland Browns re-entered the league in 1999:
Clearly, there is a strong correlation between teams with excellent quarterback play and teams with winning records. Teams that had a passer efficiency of greater than 80.00 had an overall record of 2460-2110-6 (.538 winning percentage; 8.6 wins per season); while teams that had a passer efficiency of less than 80.00 had an overall record of 1845-2231-4 (.453 winning percentage; 7.25 wins per season).
The correlation becomes even stronger when we increase the cut-off point slightly. Teams that had a passer efficiency of greater than 82.00 had an overall record of 1721-1267-4 (.576 winning percentage; 9.2 wins per season); while teams that had a passer efficiency of less than 82.00 had an overall record of 2584-3074-6 (.457 winning percentage; 7.3 wins per season).
Conversely, teams with an overall record of .500 or greater had an average passer efficiency rating of 84.48 (going up to 85.94 for teams averaging 9+ wins a season), while sub-.500 teams had an average passer efficiency rating of 77.58.
Therefore, it is not surprising that the Cleveland Browns, with by far the lowest passer efficiency rating (71.14), also had by far the worst overall record (85-187-0; .320 winning percentage; 5.1 wins per season).
There are some anomalies in the above table, most notably the Baltimore Ravens, who posted the NFL's 7th-best record (157-115-0; .577 winning percentage; 9.2 wins per season) and 7th-worst passer efficiency rating (76.28). Of course, the Ravens were able to win a large number of games (and a Super Bowl in 2000) with an historically strong defense, but even they eventually secured their own franchise quarterback (Joe Flacco; 75-47 record; 84.7 passer efficiency rating) who led them to an equally large number of wins and a second Super Bowl victory in 2012.
Some other anomalies occur at the other end of the spectrum, where the Oakland Raiders and the Saint Louis (now Los Angeles) Rams seem to have better passer efficiency ratings than their overall records would suggest. So let's take a closer look at both teams:
When Rich Gannon was playing at a Hall of Fame level (1999 to 2002), the Raiders were one of the best teams in the NFL. Gannon suffered serious injuries in 2003 and 2004, the second of which forced his retirement from football. From 2003 to 2013, the Raiders' revolving door at quarterback was almost as bad as the Browns', with no less than seventeen quarterbacks getting at least one start, and no single quarterback earning more than 28 starts. The Raiders' quarterback situation was not finally stabilized until 2014, when rookie Derek Carr locked down the job - he appears to be the franchise quarterback that the Raiders spent a decade searching for.
The Rams had one of the great offensive juggernauts of all time with running back Marshall Faulk, wide receivers Isaac Bruce and Torry Holt, and quarterback Kurt Warner leading the way. While the Greatest Show on Turf lasted, the Rams were a perennial favorite to win the Super Bowl (and they did so following the 1999 season), but when their quarterback play deteriorated the wins dried up. The Rams have had sixteen starting quarterbacks since 2004 and they are still searching for the face of their franchise.
Continued below in Comments section....
NFL Team | Complete | Attempts | Comp Pct | Yards Passing | ---TDs--- | ---INTs-- | Passing Eff | W/L Record | -Win Pct- |
---|---|---|---|---|---|---|---|---|---|
New England Patriots | 6,047 | 9,643 | .627 | 67,147 | 495 | 205 | 91.61 | 181 - 91 - 0 | .665 |
Indianapolis Colts | 6,255 | 9,873 | .634 | 70,295 | 509 | 253 | 91.05 | 181 - 91 - 0 | .665 |
Green Bay Packers | 6,040 | 9,624 | .628 | 67,681 | 515 | 253 | 90.57 | 169 - 102 - 1 | .623 |
Pittsburgh Steelers | 5,324 | 8,635 | .617 | 60,436 | 394 | 255 | 89.87 | 168 - 103 - 1 | .619 |
New Orleans Saints | 6,431 | 10,163 | .633 | 71,531 | 502 | 287 | 88.84 | 142 - 130 - 0 | .522 |
San Diego Chargers | 5,680 | 9,121 | .623 | 62,867 | 426 | 267 | 86.07 | 139 - 133 - 0 | .511 |
Denver Broncos | 5,696 | 9,285 | .613 | 64,183 | 438 | 262 | 85.97 | 161 - 111 - 0 | .592 |
Dallas Cowboys | 5,467 | 8,893 | .615 | 60,583 | 415 | 295 | 83.43 | 136 - 136 - 0 | .500 |
Seattle Seahawks | 5,212 | 8,614 | .605 | 56,777 | 386 | 246 | 83.01 | 151 - 121 - 0 | .555 |
Philadelphia Eagles | 5,650 | 9,535 | .593 | 62,647 | 418 | 254 | 82.35 | 157 - 114 - 1 | .579 |
Minnesota Vikings | 5,388 | 8,712 | .618 | 58,079 | 380 | 285 | 82.31 | 136 - 135 - 1 | .502 |
Houston Texans | 4,511 | 7,296 | .618 | 48,291 | 280 | 212 | 81.87 | 97 - 127 - 0 | .433 |
Kansas City Chiefs | 5,277 | 8,745 | .603 | 57,642 | 349 | 238 | 81.80 | 129 - 143 - 0 | .474 |
NFL Average minus Browns | 5,465 | 9,058 | .603 | 59,098 | 380 | 269 | 81.17 | N/A | N/A |
Atlanta Falcons | 5,379 | 8,966 | .600 | 58,117 | 366 | 261 | 80.56 | 134 - 137 - 1 | .494 |
Saint Louis Rams | 5,838 | 9,501 | .614 | 62,498 | 377 | 309 | 80.37 | 120 - 151 - 1 | .443 |
New York Giants | 5,593 | 9,461 | .591 | 62,429 | 397 | 288 | 80.14 | 142 - 130 - 0 | .522 |
Washington Redskins | 5,393 | 9,000 | .599 | 58,065 | 349 | 254 | 80.07 | 117 - 155 - 0 | .430 |
San Francisco 49ers | 5,048 | 8,492 | .594 | 53,249 | 342 | 232 | 79.79 | 127 - 144 - 1 | .469 |
Tennessee Titans | 5,195 | 8,724 | .595 | 56,808 | 344 | 257 | 79.71 | 137 - 135 - 0 | .504 |
Cincinnati Bengals | 5,507 | 9,137 | .603 | 57,505 | 379 | 288 | 79.22 | 128 - 142 - 2 | .474 |
Jacksonville Jaguars | 5,225 | 8,842 | .591 | 54,820 | 330 | 238 | 78.39 | 117 - 155 - 0 | .430 |
Tampa Bay Buccaneers | 5,359 | 8,969 | .598 | 55,708 | 343 | 267 | 78.10 | 123 - 149 - 0 | .452 |
Carolina Panthers | 4,995 | 8,564 | .583 | 55,069 | 355 | 276 | 77.87 | 136 - 135 - 1 | .502 |
Buffalo Bills | 5,144 | 8,620 | .597 | 53,429 | 329 | 273 | 77.17 | 116 - 156 - 0 | .426 |
Oakland Raiders | 5,293 | 9,098 | .582 | 56,985 | 341 | 272 | 76.70 | 104 - 168 - 0 | .382 |
Baltimore Ravens | 5,289 | 8,996 | .588 | 54,529 | 331 | 266 | 76.28 | 157 - 115 - 0 | .577 |
New York Jets | 5,052 | 8,535 | .592 | 53,097 | 325 | 292 | 75.77 | 135 - 137 - 0 | .496 |
Miami Dolphins | 5,320 | 9,002 | .591 | 55,283 | 319 | 284 | 75.59 | 130 - 142 - 0 | .478 |
Detroit Lions | 5,868 | 10,046 | .584 | 61,740 | 371 | 326 | 75.16 | 95 - 177 - 0 | .349 |
Arizona Cardinals | 5,672 | 9,705 | .584 | 60,856 | 345 | 335 | 74.38 | 120 - 152 - 0 | .411 |
Chicago Bears | 5,259 | 9,010 | .584 | 53,690 | 345 | 308 | 74.07 | 135 - 137 - 0 | .496 |
Cleveland Browns | 5,075 | 8,832 | .575 | 51,863 | 299 | 309 | 71.14 | 87 - 185 - 0 | .320 |
The correlation becomes even stronger when we increase the cut-off point slightly. Teams that had a passer efficiency of greater than 82.00 had an overall record of 1721-1267-4 (.576 winning percentage; 9.2 wins per season); while teams that had a passer efficiency of less than 82.00 had an overall record of 2584-3074-6 (.457 winning percentage; 7.3 wins per season).
Conversely, teams with an overall record of .500 or greater had an average passer efficiency rating of 84.48 (going up to 85.94 for teams averaging 9+ wins a season), while sub-.500 teams had an average passer efficiency rating of 77.58.
Therefore, it is not surprising that the Cleveland Browns, with by far the lowest passer efficiency rating (71.14), also had by far the worst overall record (85-187-0; .320 winning percentage; 5.1 wins per season).
There are some anomalies in the above table, most notably the Baltimore Ravens, who posted the NFL's 7th-best record (157-115-0; .577 winning percentage; 9.2 wins per season) and 7th-worst passer efficiency rating (76.28). Of course, the Ravens were able to win a large number of games (and a Super Bowl in 2000) with an historically strong defense, but even they eventually secured their own franchise quarterback (Joe Flacco; 75-47 record; 84.7 passer efficiency rating) who led them to an equally large number of wins and a second Super Bowl victory in 2012.
Some other anomalies occur at the other end of the spectrum, where the Oakland Raiders and the Saint Louis (now Los Angeles) Rams seem to have better passer efficiency ratings than their overall records would suggest. So let's take a closer look at both teams:
Oakland Raiders QBs | Complete | Attempts | Comp Pct | Yards Passing | ---TDs--- | ---INTs-- | Passing Eff | W/L Record | -Win Pct- |
---|---|---|---|---|---|---|---|---|---|
1999 - 2002 (Gannon) | 1,372 | 2,167 | .633 | 15,097 | 105 | 44 | 91.56 | 41 - 23 - 0 | .641 |
2003 - 2015 | 3,921 | 6,931 | .566 | 41,888 | 236 | 228 | 72.05 | 63 - 145 - 0 | .303 |
Saint Louis Rams QBs | Complete | Attempts | Comp Pct | Yards Passing | ---TDs--- | ---INTs-- | Passing Eff | W/L Record | -Win Pct- |
---|---|---|---|---|---|---|---|---|---|
1999 - 2003 (Warner) | 1,887 | 2,903 | .650 | 22,363 | 163 | 110 | 91.28 | 56 - 24 - 0 | .700 |
2004 - 2015 | 3,951 | 6,598 | .599 | 40,135 | 214 | 199 | 75.57 | 64 - 127 - 1 | .336 |
Continued below in Comments section....
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