Devil's Advocate: Blaine Gabbert's Interception Numbers
Here at Rock M Nation, we pride ourselves in trying to avoid/fight the mob mentality that dominates The Interwebs. All those months of skepticism at RMN about lines of thinking that are a little too easily accepted for our tastes have led me to an unintended fondness for contrarianism. Contrarian pieces on SB Nation are nothing new (the inestimable T. Kyle King penned a fantastic series titled Kyle Gets Contrary for Dawg Sports). But this summer, I'm launching a series titled "Devil's Advocate" in which, regardless of my own personal beliefs, I'll attempt to challenge some of Missouri fans' most commonly-held beliefs. Today's truth to challenge:
"Blaine Gabbert will throw fewer interceptions than in 2009"
By nearly any metric, Blaine Gabbert's debut season as starter, especially when healthy, was a smashing success. He finished in the Top 10 nationally in passing yards per game (276.4) and net passing yards (3593), the Top 20 in yards per attempt (8.1) and touchdowns (24), and finished 29th in the country in passer rating (140.46). However, today we focus on interceptions, of which Gabbert only threw nine in 2009.
The interception numbers can be somewhat deceiving. Can you name the passer in the NCAA last year with at least 150 attempts who threw the fewest interceptions? If you correctly answered Florida Atlantic's Jeff Van Camp, you're either Phil Steele or you should probably get a hobby. Gabbert threw fewer interceptions in 2009 than highly respected quarterbacks Colt McCoy, Todd Reesing, Jake Locker, Zac Robinson, etc. By the same token, he threw more than such luminaries as Utah State's Diondre Borel and Memphis' Will Hudgens. C'est la vie when looking at INT numbers.
But rather than looking at the total number of interceptions, for the sake of argument, I've opted to use the interception rate numbers, which better account for inflated INT numbers based on inflated numbers of attempts. Common logic indicates that a returning starter at quarterback should account for fewer INTs than the year before, right?
Since the end of 2006 season, Big 12 teams have returned a starting quarterback a total of 32 times, including instances of dual starters (such as Cody Hawkins/Tyler Hansen). In only 11 of those instances has the team been able to reduce its interception rate. That means that the recent trend in the Big 12 has been for returning passers to actually throw more interceptions per pass attempt than in the previous year. Pick your rationale here: Better defensive gameplanning, quarterback overconfidence, more willingness from offensive coordinators to let experienced signal callers wing it, etc. Whatever the explanation, more than 65 percent of the time during the last several years, interception numbers have regressed.
How has Missouri fared in that sample? Note: Negative numbers indicate a lower INT rate, so negative = better, m'kay?
|
Year |
ATT |
INT |
INT RATE (rounded) |
Change |
|
2006 |
465 |
11 |
2.4% |
|
|
2007 |
582 |
13 |
2.2% |
|
|
2008 |
565 |
18 |
3.2% |
|
|
2009 |
467 |
11 |
2.4% |
|
With Chase Daniel returning for his junior season in 2007 with a year of experience under his belt, Dave Christensen put the game in Daniel's hands and let him air it out 117 more times (with, of course, a Big 12 championship appearance included). Even in putting together one of the greatest seasons in school history, Daniel shaved off only .13 percent from his interception rate. Then came what we perceived at the time to be the real statistical anomaly, as his INT rate jumped from 2.23 percent to 3.19 percent, nearly a full percent jump usually reserved for breaking in new quarterbacks. In 2009, Gabbert returned Missouri's INT rate to the 2.4 percent range, somewhat righting the statistical ship for this small sample size. If there's another reason to thank the stars for Mizzou's recent string of quarterbacks, Missouri's average of 2.54 percent INT rate vs. the national average of 3.27 percent is one of them.
If the returning experience is supposed to mean everything for interception rates, the numbers certainly don't play along. Across the 120-team FBS, teams saw an improvement in interception rate 177 times out of a possible 359 (49.3 percent of the time). Teams returned starters 322 times in that same span, and teams saw improvement in only 133 instances (a 41.3 percent clip). Quite simply, whether it's a new starter or not, everyone seems to regress toward the mean. Experience does not automatically equal a better INT rate.
But for all the incoherent rambling and statistical voodoo I can do, the point is simple: When it comes to interceptions, contrary to popular belief, Blaine Gabbert will have a hard time avoiding regression in 2010. This is not meant as a shot at Gabbert. In fact, it's quite the opposite. Gabbert protected the ball extremely well in 2009, but as Missouri presumably entrusts the offense to his howitzer of a right arm, it's his task to keep the ball away from defenders. Nine interceptions and a 2.4 INT rate isn't an impossible standard, but it's certainly not the easiest to maintain year-in and year-out.
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I voted "yes" because . . .
. . . I think we will have a better running attack this year, which should allow Gabbert to be more selective in his pass selection. Plus, with a stronger ankle this year, he should be more willing to pull it in and run rather than try to force a pass.
It all depends on if he gets injured again.
If he’s healthy the whole season, I can easily see that number drop even more.
I voted yes but think no...
he’s going to be more comfortable in the offense, attempting riskier throws – and to an inexperienced receiver corps that may not fight for the ball, position as well, or tip too many passes…
"When among evil companions, try to fit in." - Wild Bill Donovan
Agreed, receivers will play a large part.
Mostly if they can hold on to the ball and not let it bounce off or get tipped. Whose hands do you really trust right now?
Let's ask the Bengals
if they’ll loan him to us. I mean after all that soccer talk yesterday, I’m feeling some other sports begin to adopt the same practices. And by sports I mean Mizzou. And I’d also like to get me some more Chase Coffman, with a nice side of Cheat Code.
by TheHamburglar on Jul 1, 2010 1:06 PM CDT up reply actions
Blaine Gabbert > Jake Locker???
You sir are suspect!!!! RAWWR!!!! /stupid UW fans
I voted no, because of the statistical trends. It seems to be a tough order. However I am hoping yes for reasons that cal had stated. I would like to add this; Though the loss of Domino Axelrod will hurt, I hope the idea of having mutliple “good” targets can offset the opposing defenses enough.
I guess what I am trying to say is due to loss of personel (and more experience to others, COME ON TEs !! ) the offense could function a bit differently this year which would give Mizzou a bit of an advantage, perhaps allowing Gabbert to decrease his interception rate. (maybe not overall interceptions)
Given enough velocity even a pig will fly
by MarioVanPeebles Republic of China on Jul 1, 2010 11:36 AM CDT reply actions
I think his arm strength affects interceptions, too
I can remember several passes last year where he made bad passes and only got away with an incomplete because the defender wasn’t prepared for a missile strike. I’m guessing people will be more prepared for it this year.
Making fun of the "Mizzou Needs a Fullback" Club since...well, for a while, anyway.
Blaine Gabbert
Precision Airstrike!!!

Great Odin's Raven I love Mike "The Predator" Dixon!
by pinkelposse on Jul 1, 2010 12:35 PM CDT reply actions 3 recs
Oh man.
I bet maybe like 30 other people on here get that. I approve.
by TheHamburglar on Jul 1, 2010 1:07 PM CDT up reply actions 1 recs
Personally...
I’m more of a Harrier Strike kinda guy…but to each their own.
Annoying You Since 1986
by MUTIGERS86 on Jul 1, 2010 2:16 PM CDT up reply actions 1 recs
yeah I usually roll with
Predator
Harrier
AC130
Great Odin's Raven I love Mike "The Predator" Dixon!
by pinkelposse on Jul 1, 2010 4:58 PM CDT up reply actions 1 recs
I'd be very curious how the improvement/decline correlated with returning OL starts
And jaeger brings up a pretty good point, several of Gabbert’s picks were not of the decisionmaking variety. Not sure what conclusion you can draw from that point, but it’s worth noting.
"I'm a genius, but I'm a misunderstood genius."
"What's misunderstood about you?"
"Nobody thinks I'm a genius."
by Transmogrified Tiger on Jul 1, 2010 1:01 PM CDT reply actions
Interceptions
A variable not included in this analysis is experience of Offensive line. In 2006, Chase Daniel had several juniors, in 2007, his left tackle and center were both seniors and 4 year starters. In 2008, several new faces entered the 2 deep on the line, including a RSFr at LT and a True Fresh on the 2 deep at RT.
In 2009, they got one year older and lost one player. In 2010, Mizzou will have a Junior laiden offensive line, several will be starting for the 3rd year in a row. I think BG’s numbers get way better with this experienced Oline.
Lower
BG doesn’t have Jared Perry to deflect the ball into defender’s hands
here's a question for statistical people
Are INT’s more of a function of the quarterback or the defense? How do you know? Are some defenses able to intercept more than an average number of passes, and what delta is there between them and more ordinary teams?
ok that was a few questions
Depends
You have three general types of INTs: bad throws that go right to the defender, deflections that are grabbed by the defender, and defenders reading/baiting the qb. The first is all on the qb, the second isn’t, and the third is a combination of bad decision making by the qb and good defensive play. A team like the Baltimore Ravens are skilled enough that the second and third types probably predominate. I don’t know if anyone has ever tried to categorize INTs like that before.
would it also depend on the recievers?
there’s a way to knock down a pass if you can’t get to it, then there’s the other way
Given enough velocity even a pig will fly
by MarioVanPeebles Republic of China on Jul 2, 2010 9:44 AM CDT up reply actions
Just a stats terminology note,
but you’re using “regression to the mean” wrong.
Think of it this way: In an average season your luck will balance out – some good, some bad. This is the normal state of affairs. But given a whole big population of people, in any given year some will just happen to get a whole lot of good luck, and some people who will just happen to get a whole lot of bad luck. The odds of it happening to each person are low, but it’s a near certainty that it will happen to SOMEBODY. So if you go and specifically select the people with the most extreme scores, the odds are that you’re going to scoop up quite a few of those people whose performance was altered by an unusually long strings of consistent luck. That is the part of their advantage that is unsustainable, and likely to disappear the next year (leading them to regress to the mean). Their skills and abilities won’t have regressed to anything (unless there is something very badly wrong with their training), just their luck will even out.
If most quarterbacks in the league are moving in a downwards direction then that’s not RttM. Maybe its more informed defenses, or them attempting more ambitious throws, who knows. But while you would expect the top 5 most accurate quarterbacks in the league to regress, on average, you wouldn’t expect all quarterbacks as group to regress, because, after all, next year it’s some OTHER quarterback’s turn to get that crazy string of luck).
But then I read this:
highly respected quarterbacks …Todd Reesing… etc
And realized it was all a big spoof :P
The near 50-50 split nationally...
… led me to believe that, however you phrase it, it all seems to average out in the end, regardless of experience. If I botched the terminology in there, I apologize.
I think Ross used it right
From what I understand, he’s basically saying that, regardless of Gabbert’s skill as a quarterback, he’s going to throw more interceptions because luck will balance out.
Also, this is why I love analyzing baseball: xFIP makes regression-to-the-mean analysis so damn easy.
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