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NYT Fifth Down: Post-week 12

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.

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The teacher and the pupil.

Alex Smith has had an incredible career revival since Jim Harbaugh came to San Francisco. The first six seasons of his career, Alex Smith won just 38% of his 50 starts, but he has an incredible 15-3 regular season record since 2011 (83%). From 2005 to 2012, Smith had an ugly 72.1 passer rating, the worst of any quarterback with 1500 attempts over that span. Since Harbaugh came to town, Smith has a 93.6 passer rating, the 7th best mark of any quarterback over that time frame.

But there are two other, related, metrics, that indicate a fundamental shift in Smith’s style of play. In 2011, Alex Smith led the NFL in interception rate, but he also led the league in sacks. Smith threw an interception on just 1.1% of his passes in 2011 but took a sack on 9.0% of his dropbacks; this year, his sack rate has jumped to 10.9% while he has yet to thrown an interception.

Last year, the average quarterback threw an interception on 2.9% of his passes and was sacked on 6.4% of his dropbacks, meaning Smith’s interception rate was just 39% of the league average while his sack rate was 41% higher than league average. Smith also averaged just 197 passing yards per start, 80% of the league average metric.

It’s extremely early, of course, but Smith looks to be on a similar path this year. Which made me wonder: how often does a quarterback [1]For purposes of this study, I also limited the group to quarterbacks since 1978 who played for the same team for both years and who threw at least 200 passes in both years. have a two-year stretch with (1) an excellent interception rate, (2) a bad sack rate, and (3) a below-average amount of passing yards per game? The answer is very rarely.

There’s a lot of information to present, so I’ve overloaded the table below. This lists all quarterbacks since 1978 who over a two-year period had a sack rate at least 30% higher than average, an interception rate of 70% of league average or lower, and were below league average in passing yards per game. After the traditional categories, I’ve listed each quarterback’s sack rate, interception rate and yards per game, and then how their sack rates, interception rates and yards per game compared to league average. The last two columns show the quarterback’s record over those two years.

QBTmYearsAttYdTDINTSkSkYdSkRtINTRtYPGSk%INT%YPG%RecWin%
Charlie BatchDET1998--1999573413524137340811.3%2.3%180159.9%68.3%80.1%11-11-00.500
Steve YoungSFO1996--199767254393312693809.3%1.8%201134.6%55.6%91.5%21-6-00.778
Jim HarbaughIND1996--199771446902315774469.7%2.1%180140.7%65.4%81.9%9-16-00.360
Jim HarbaughIND1995--199671952053016724099.1%2.2%179145.3%69.2%78.6%14-12-00.538
Jim HarbaughIND1994--199551640152611532919.3%2.1%149156.2%69%64.3%11-10-00.524
Ken O'BrienNYJ1987--198881752632815876319.6%1.8%202134%46.6%91.9%11-12-10.479
Neil LomaxSTL1985--19868925797312411382311.2%2.7%193141.2%65.9%85.8%9-20-10.317
Ken O'BrienNYJ1984--1985691529031158456710.8%2.2%203130.1%52.8%89.9%12-9-00.571
Steve BartkowskiATL1983--1984701532533159164811.5%2.1%213140.5%50.8%94.6%9-16-00.360
Neil LomaxSTL1982--1983559400329177454911.7%3%182147.7%69.6%82%12-9-10.568

During Jim Harbaugh’s 4 years in Indianapolis, he was essentially Alex Smith. He had a 9.6% sack rate and a 2.1% interception rate, while averaging under 180 passing yards per game. When discussing Joe Namath, I noted that he almost never took sacks, which by some measures penalized him because it drove down his completion percentage and increased his interception rate. You can put Alex Smith and the Indianapolis version of Jim Harbaugh on one end of a spectrum and Joe Namath on the other. Both interceptions and sacks are bad, but to some extent, quarterbacks can decide whether they want to throw interceptions or take sacks. Smith, under Harbaugh’s tutelage, has clearly chosen the latter.

On a team with a great defense, that can work. Namath’s defenses weren’t always good, but when they were, the Jets were Super Bowl contenders. When the defenses struggled, Namath pressed even more, and ended up throwing even more interceptions. Smith is never asked to do too much, and Harbaugh has surrounded him with enough talent on the other side of the ball to make that a winning formula.

From 1994 to 1996, Jim Harbaugh went just 20-26 with the Colts. In 1997, Harbaugh had the lowest interception rate in the NFL and the second highest sack rate in the league. But the 1997 Colts ranked in the bottom 5 of the NFL in points allowed, passing touchdowns allowed, interceptions forced, rushing yards allowed, rushing touchdowns allowed and yards per carry allowed. The team went 3-13 overall, and 2-9 with Harbaugh, indicating that this conservative philosophy has its limitations.

Often times we use stats as a way to rank players, where more of one stat or less of another means a player is good, and less of one stat and more of another means a player is bad. But stats can also be used descriptively without overarching themes of good or bad. Just like some running backs are big and slow and others are small and fast, some quarterbacks are risky and some are risk-averse.

Harbaugh clearly was a risk-averse player in Indianapolis under Lindy Infante. What about the other players on the list? Conservative and risk-averse were good adjectives to describe Charlie Batch’s first two years in the league. In 1998, he had Barry Sanders, but Batch’s numbers were nearly identical both seasons (of course, you would normally expect some improvement by a quarterback betwen year one and two). It looks like he played things very safe as a rookie on a good team in 1998, and let’s not forget how he got the starting job: Scott Mitchell was benched after throwing a pick-six in overtime. We can safely conclude that Batch was told to avoid interceptions at all costs, for many reasons.

Steve Young led the league in passer rating in ’96 and ’97, and for many reasons, doesn’t really feel like a comparable player to Alex Smith. He had already been a two-time MVP by 1996.

Ken O’Brien was a very accurate quarterback who led the league in interception rate in ’85, ’87 and ’88. But he took a ton of sacks, in part because of a below-average offensive line. At his peak he was better than Smith has been so far — in ’85 he was 2nd in yards per attempt and he was 5th in that metric in ’86 — but there are some similarities between the two players.

From 1982 to 1986, Neil Lomax had a 10.5% sack rate but a tiny 2.8% interception rate; despite the conservative nature, his team went just 30-36-2 over that span. Lomax was outstanding in 1984, but otherwise was a solid but unspectacular player during this span (Lomax made the Pro Bowl in ’87 when he led the league in completions, attempts, and passing yards.) Lomax also benefited from consecutive All-Pro seasons from Roy Green in ’83 and ’84, but poor defenses prevented Lomax from compiling a winning record in St. Louis.

In the early ’80s, Steve Bartkowski had some success under Leeman Bennett, and made the Pro Bowl in ’80 and ’81. During those years, he was at or above average in sack rate and also interception rate, but then his interception rate improved dramatically in ’83 while his sack rate fell off for the rest of his career. A likely explanation is the hiring of Dan Henning that season, who may have emphasized a more conservative approach.

The two years before Harbaugh arrived, Smith had a 6.2% sack rate and a 3.1% interception rate, both numbers which were pretty close to league average. But Alex Smith 2.0 is not trying to prove to the world that he’s the #1 pick who can do everything; this version is concerned with minimizing risks at all costs. So far, it’s been a very successful formula.

References

References
1 For purposes of this study, I also limited the group to quarterbacks since 1978 who played for the same team for both years and who threw at least 200 passes in both years.
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The San Francisco 49ers were the breakout team of the 2011 season, going from 6-10 in 2010 to 13-3 last year. The Cincinnati Bengals were the surprise team of the AFC, jumping from four to nine wins and earning a playoff berth. The Houston Texans, Detroit Lions, and Denver Broncos all made the playoffs after notching four more wins in 2011 than they had in 2010. But could you have known after just one week that those teams were on track for such breakout seasons? Let’s review.

San Francisco 49ers 33, Seattle 17

The 49ers were Super Bowl contenders as long as Ginn was returning punts.

This was an odd game, and Jason McIntyre explains why:

San Francisco had just 12 first downs and 209 yards … but still beat the Seahawks by 16 points. The real reason the 49ers won was because Ted Ginn ran a punt and kickoff back for touchdowns in a span of 59 seconds. But offensively, Frank Gore averaged 2.7 ypc and Alex Smith threw for just 124 yards. San Francisco had the ball for 31 minutes and mustered only 12 first downs. As bad as the 49ers looked offensively, the defense did sack T-Jack five times and generate three turnovers. But if the 49ers couldn’t move the ball against a mediocre Seahawks defense … what will they be able to do against the Cowboys, which annihilated the Jets’ offensive line Sunday night? The 49ers have opened as 3-point dogs against Dallas next weekend … I humbly suggest loading up on Romo in that one. No word if San Fran will be without Michael Crabtree.

The 49ers offense wasn’t impressive, but San Francisco’s defense and special teams were dominant. That formula proved to work all season, although few expected it to work against teams better than Seattle. At the time Seattle was considered one of the worst teams in the league (they were a 14-point underdog in Pittsburgh the following week), which made the victory look even less impressive. After week one, Jason Lisk unveiled his Week 1 Power rankings, placing NFL teams into seven tiers. The 49ers were placed in Tier 6 with the comment “When you need two returns by Ted Ginn to put away the Seahawks, you are not good.” ESPN’s power rankings placed San Francisco at #22.

Cincinnati 27, Cleveland 17
This was an ugly game that caught almost nobody’s attention. The big stories of the game were the officiating and the performance of Bruce Gradkowski, who came and led Cincinnati to a win after Andy Dalton was injured. Many in Cleveland blamed the referees, as the Browns were flagged for 11 penalties, compared to just three for Cincinnati. And on the game’s pivotal play — a 41-yard touchdown to A.J. Green — the Browns were still in their defensive huddle at the start of the play, and later argued that the quick snap wasn’t a legal play. The Bengals defense was excellent, shutting down Peyton Hillis and Colt McCoy, but many thought that was simply a product of the schedule. Suffice it to say, no one was boarding the Bengals’ bandwagon after week one. Lisk placed Cincinnati in Tier 5: “Still not sold here, especially if Bruce Gradkowski is QB. Haden shut down Green until the play where he was uncovered at the snap, and Benson’s numbers boosted by a late TD run.” ESPN ranked the Bengals 30th… and the Browns 32nd. The Bengals would lose in Denver and in San Francisco the next two weeks, dropping to 1-2.
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[You can find lots of websites previewing each team as we head towards the 2012 season. You won’t find that at FootballPerspective.com, but instead, I’ll share some random thoughts on each franchise based on well, whatever springs to mind. We’ll kick things off with look at the San Francisco 49ers.]

The 49ers are an interesting team to me because they seem like the ideal candidate to regress. Generally, teams that make huge jumps in one season are better candidates to fall back to the pack than elite teams with a history of success. Additionally, defensive teams are generally less likely to retain their success than offensive teams. But since I don’t expect you to just believe me…

I looked at all teams since the AFL-NFL merger in 1970 that won at least 75% of their games (San Francisco went 13-3 last year) and then separated them based on their records in the prior season (the 2010 49ers went 6-10). There were 155 of them, and how they performed in the year before (Year N-1) their elite season was relevant in determining their record in the year (Year N+1) after that big season. The table below breaks down the teams based on their winning percentages in Year N-1 (for our purposes, that’s 2010 for the 49ers) and then shows how well they performed in Year N+1 (for our purposes, the 2012 49ers):

Year N-1# of TmsN-1 Win%N Win %N+1 Win %
Over 80%2486.3%79.7%67.2%
70-80%3274.2%81.5%70.2%
60-70%3965.1%80.6%62.6%
50-60%3553.8%79.6%63.2%
<50%2536.8%79%53.6%
Total15563.1%80.2%63.5%

Just so we’re all on the same page, the top row of that table informs us that of the 155 teams to win at least 75% of their games, 24 of them won over 80% of their games in Year N-1. On average, those teams won 86.3% of their games in Year N-1, 79.7% of their games in Year N, and then 67.2% in Year N+1. The 49ers would represent a team in the bottom row. There have been 25 teams like the 2011 49ers who won at least 75% of their games after having a losing record the prior year (on average, those teams won just 37% of their games – just like the 2010 49ers); in the following year (e.g., the 2012 49ers) those teams won just 53.6% of their games.

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