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MNC – Some Objective Comparisons

Posted by BrickHorn on January 7th, 2010 under Football

I don’t have the time to adorn this nerd porn with flowery prose. So, I’ll just jump right in…

I’ve compared the Texas offense/defense versus the Alabama offense/defense in terms of differential yards per play gained/allowed compared to that of their opponents. In summary, what I’ve found is the following:

Defense:

On average, Texas and Alabama are defensive equals. Texas holds its opponents to -31.75% below their average YPP; Alabama holds its opponents to -27.9% under their average YPP. Out of its 13 games, Texas held its opponent below its average YPP in 12 (the lone exception was the A&M debacle). Bama held its opponent below their average YPP in all 12 games (I discarded Bama’s game against Chattanooga). Texas’ opponents ranked, on average, #54.7 in the country in total offense; Bama’s opponents ranked #57.25.

Bama’s defense was more consistent. However, except for the A&M game, Texas was better than Bama on the differential YPPA measure. Take out that one game, and Texas was better than Bama defensively by about the same amount that Bama is better than Texas offensively (more on that in a minute).

The following distribution shows each defense’s differential YPPA performance (in terms of percentage) over the season.

Defensive comparison

Offense:

Overall, Bama’s offense is better at outperforming their opponents’ average than is Texas’. Over the season, Texas outgained its opponents’ average YPPA by 12.3%; Bama outgained its opponents average YPPA by 19.2% Both Texas and Bama failed to outgain their opponents’ average YPPA in four games. However, Texas had three games where it fell short by more than 10%; Bama only two. Texas had four performances in the -10% to +10% range (which I consider roughly average); Bama had only two in this range. Texas had only 6 games where it gained 10% or more above its opponents’ average YPPA; Bama had 8. See the chart below.

Offensive comparison

In summary, Alabama’s offense was simply better than Texas’ at outperforming against its competition’s average. And Alabama faced more highly ranked defenses than did the Longhorns – the average of Texas’ opponents’ defensive ranking was #59.6; Alabama faced defenses ranked #48.8 on average.

Conclusion

Once again, it looks like Texas’ offense will be the trouble spot. These two defenses are equally matched, although there might be a slight edge to the Horns. But Texas’ mediocre offensive performance, coupled with a particular ineffectiveness against quality defenses (which the Tide certainly have), has me pessimistic about our chances. I sure hope I’m wrong.

Hook ‘Em Horns.

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36 Responses

  1. Screw the data, give me intangibles!

  2. (fingers in ears)

    lalalalalalalalalalalalalala.

  3. Stats are for losers!!! Boom MFer

  4. Yeah Boom!

    What about special teams? Got stats on that? How about Earl Thomas takin’ a pick 6 to the house? Stats?

    How about Blake Gideon summersaulting over the O-Line, planting a flying roundhouse in the QB’s grill, stripping the ball and pantsing the bama cheerleaders on the way to the end zone?

    <<<>>> Alarm clock sounds….

  5. We have 26.1% more clutch intangibles. You and Scipio must share tampons. We’re going to kick their ass.

  6. Another thing to consider: Alabama’s best offensive performance in terms of differential YPP was against the best defense the Tide faced all year (Florida, 75.4% above the Gators’ average YPPA). In fact, three of their top 5 offensive performances on this measure came against the top three defenses faced by the Tide. Compare that to the Longhorns’ track record against Top 5 defenses, and the advantage to Alabama looks even more substantial.

  7. Nice facts. But, as you imply via your probablistic analysis, you could develop an S curve of probabilities that Texas’s differential performance v. Bama will be better than vice versa. Unless that’s less than about 35% for UT, it looks like a tossup.

  8. Slow your Roll Tide said:

    January 7th, 2010 at 1:44 pm

    We scored 14 on Tennessee.

  9. NBMisha,

    It’s a small data set, but these facts trouble me: (1) Texas’ offense performs ineptly against elite defenses and (2) Alabama’s offense excels against elite defenses. Since this subset of data is pretty uniform, it appears very likely that Bama will outperform our D’s YPPA and Texas will underperform Bama’s.

  10. Huck – what does your rankings gizmo project for this game?

  11. Texas wins eleventy billion to zero.

    I have three models. The points-only model calls it a tossup (Bama by 0.2 points), while the two models that use yards per play call Bama a 6.5-point favorite.

  12. Do the two YPP models have any accounting for special teams (both in terms of field position and scores), defensive scores or turnovers? If not, that could account for the difference.

  13. Regardless of what happens, they have to go back to living in Alabama.

    Also, in both games we shit the bed on offense (especially against NU), we played not to lose. We’ll play a different game tonight.

    Fuck! Is it time to leave work yet?

  14. Man, Aggy sure is lucky that nobody on that campus is capable of statistical analysis. Had they known how statistically inferior they were, they probably wouldn’t have showed up for the game and almost beaten us………………..

  15. yes…the children have left the school building…even though in 7th period golf athletics i let them watch the golf channel and we flipped to college football live during the commercial breaks…i wanted to watch it the whole time, but I had to maintain some sort of integrity.

  16. Twain said it best: there are lies, damn lies, and statistics.

    I may have paraphrased a bit, but you get the point.

    Screw Bama, Hook ‘Em Horns!

  17. Also, do the stats include the bowl games?

  18. Yes.

  19. Photobucket

  20. Who is your daddy, and what does he do?

  21. Twain said it best: there are lies, damn lies, and statistics.

    These statistics don’t lie about the past. Let’s hope they’re poor predictors of the near future. The D will keep us in the game, the special teams will provide some sparks, and hopefully the offense bucks its own trends.

  22. What about doing the same thing with points instead of yards per play? Would be interesting to see.

  23. Turnovers yes. Return yardage and scores no. And that is almost certainly the source of the discrepancy.

  24. Fico – points is a pain in the ass for me, because I don’t think the NCAA’s statistics website distinguishes between offensive and defensive/ST scores. I’m too lazy to track all that on my own by, for example, digging through box scores for each game. So I can’t do that comparison on a separate basis for the offense and defense.

    I believe the score-based model Huck referred to relies on the total points scored/allowed by each team. According to this measure, Texas and Bama are very close.

  25. Orangeblood said:

    January 7th, 2010 at 2:36 pm

  26. One last thing after coaching the Longhorns for six seasons, I can tell you this. Those boys will always play up to the competition.

    Oh, the irony.

  27. Your analysis is flawed. You are not taking into account special teams or red zone efficiency.

    Borrowing heavily from espn…

    “Alabama finished 116th in the nation in kickoff coverage, allowing 25.66 yards per kick. Texas finished fourth in the nation in kickoff returns, with 27.38 yards per return. You don’t need an expert to tell you that the Longhorns have an advantage here. The Crimson Tide’s problems skewed earlier in the season than late. But Texas had 14 kickoff returns of at least 26 yards. The average says that it will happen at least once Thursday night. Advantage, Longhorns.”

    The other big one is red-zone scoring. “Both offenses are efficient in the red zone. Texas has scored on 95 percent of its drives (53-of-56); Alabama is right behind at 85 percent (47-55). Both have dependable kickers. The difference is that the Longhorns don’t call on Hunter Lawrence as often as the Crimson Tide call on Leigh Tiffin. Texas has crossed the goal line on 71 percent of its red zone drives (40-56); Alabama is stuck at 45 percent (25-55).”

    Basically, it don’t mean a hairy rats ass if they average more yards per play IF THEY CAN’T SCORE A TD. This team went through a 4 game stretch with only 2 offensive TD’s. Put another way… you can go 10 yards per play and go 2 yards per play inside the 20 and get just 3 pts… or go 8 yards a play and score 7 pts inside the 20. We are basically option #2.

    We are the #3 scoring offense for a reason…a full 9 pts more per game… because that stat takes into account defensive TD’s and Special teams and Red zone performance.

  28. Like you, Donny, I’m pinning my hopes on ST and defense. I hope those make more of a difference than our ineptitude against top defenses.

    Oh, and you’re out of your element. Not really. But I couldn’t resist.

  29. Chinaman is not the preferred nomenclature.

  30. Jigglebilly said:

    January 7th, 2010 at 2:53 pm

    All I got out of Mackovic’s article is this: “John Mackovic is a La Quinta resident.” BWAHAHAHA!

  31. I should’ve prefaced my comments with ‘good stuff’. Just not the complete picture. :)

  32. It’s easy to look good in these numbers when you play a bunch of SEC teams for whom three points is a statistically significant increase or decrease.

  33. It’s funny that everyone keeps pretending like Alabama is some kind of juggernaut. They’re not. They’re coming off of their best game of the season. We are coming off of our worst. Football is a funny game. It ain’t like this is Cincy vs. Fla.

  34. It’s funny that everyone keeps pretending like Alabama is some kind of juggernaut.

    I don’t think Alabama is a juggernaut. But they’re better than OU and Nebraska, two teams we played at neutral sites and were lucky to beat. That said, this Texas team has a knack for surviving close games, no matter the opponent.

  35. Name (required) said:

    January 7th, 2010 at 6:11 pm

    “Sir, if you don’t shut up I’m going to kick 100% of your ass!!”
    — Brad Hamilton

  36. Once again, it looks like Texas’ offense will be the trouble spot.

    I hate to say “I told you so,” but…

    In all seriousness, what a fucked-up game. Texas’ defense and special teams were exceptional. Yes, the defense played well last night. Only 14 or 17 of Bama’s 37 points fell on the D, and we held them to under 300 total yards despite having no offensive support for 30 minutes. The offense did what it could while fighting with one hand behind it’s back and, frankly, far exceeded my expectations in the second half.

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