My article for the New York Times this week takes a look at one interesting statistic for each of the eight division winners.
 

Atlanta Falcons – Record in Close Games
In 2010, Atlanta raced to a 10-2 record on the strength of an improbable 7-1 record in games decided by 7 or fewer points. How a team fares in close games has a heavy impact on a team’s final record, but statisticians agree that such a metric holds little predictive value. The Falcons earned the No. 1 seed in the N.F.C. thanks to their success in close games, but ranked only seventh in the Football Outsiders advanced statistical rankings and 21st in the Advanced NFL Stats efficiency ratings. Atlanta lost badly in its playoff opener, not surprising to those who felt the Falcons’ record was more mirage than reality.

This season, Atlanta has raced to a 10-1 record on the strength of an improbable 7-1 record in games decided by 7 or fewer points. Football Outsiders ranks the Falcons 12th, and according to its founder, Aaron Schatz, the Falcons have by far the worst efficiency rating of any of the 18 teams that have started 10-1 since 1991. Advanced NFL Stats is slightly more generous, placing the Falcons fifth, although the gap between the fifth and 12th teams in its rating is miniscule. The takeaway: Don’t get caught up in the Falcons’ record. It will give Atlanta a bye, but no other guarantees come with it.

San Francisco – Top Pass Defense in the N.F.L.

Last season, the 49ers’ reputation for having an elite defense was built on their superb run defense, which ranked first in rushing yards allowed, rushing yards per carry allowed and rushing touchdowns allowed. But the 49ers were not dominant against the pass, ranking ninth in net yards per pass attempt allowed. This season, the San Francisco defense is without weakness.

The 49ers (8-2-1) actually lead the N.F.L. in net yards per pass attempt allowed. In the process, the 49ers lead the N.F.L. in points allowed, and their defense ranks in the top three in both first downs allowed and Pro-Football-Reference’s Expected Points Added statistic. The run defense remains stout, ranking in the top four in yards, yards per carry and touchdowns allowed, but the improvement in the pass defense makes this an even better defense than the 2011 version. As long as San Francisco continues to shut down opposing passers, it won’t matter very much whether Coach Jim Harbaugh picks Alex Smith or Colin Kaepernick at quarterback.

Chicago – 11th in Points Scored Without an Offense

As a technical matter, the Bears (8-3) rank 11th in points scored. Just don’t let anyone tell you that in the context of a story about how Chicago’s offense is underrated. The Bears have scored eight non-offensive touchdowns this season — seven on interception returns, one on a blocked punt — and their great defense and special teams consistently set up the offense for success even when those units aren’t scoring touchdowns. Chicago is in the bottom five in Net Yards per Attempt, Adjusted Net Yards per Attempt, total yards and sacks allowed. The Bears’ running game benefits from a high number of carries, but ranks below average in both yards per carry and PFR’s Expected Points Added statistic.

The defense is excellent, but a poor offensive line and mediocre wide receiver talent behind Brandon Marshall leave the Bears with one of the worst offenses in the N.F.L. — regardless of how many points they’ve scored. Advanced NFL Stats ranks the Bears’ offense as the second worst in the league.

You can read the full article here.