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Economists Like Taking The Fun Out Of It

Economists at Mercer University are putting their skills to good use.  Never mind the market, I'm talking about predicting recruiting commitments:

The authors used statistical software developed by SAS along with data provided by Rivals.com (a national website dedicated to college football and recruiting) in the development of this model. The model was built on a database capturing characteristics and decisions of 3,395 recruited athletes for the three "recruiting seasons" between 2002 and 2004. On average, each player was choosing from among a group of 4 schools. A wide array of player and team level data were gathered for this task. Then, a special form of a probit model was developed to capture, to the best extent possible a statistical equation to capture the decision making process.

They go on to detail some of the things that appear to matter to recruits, and of course one's that don't.

[F]actors like the school’s graduation rate, the number of Bowl Championship Series (BCS) bowl appearances, the current roster depth at the recruited player’s position, the number of players from a specific college drafted by the NFL, and even the number of national championships won by a particular program don’t systematically influence the decisions of high school athletes.

This is (as they later suggest) somewhat surprising.  Graduation rate and BCS appearances are easy enough to discount.  Most top recruits are interested in going pro in something other than sports. Grad rates aren't a big part of that.  As for BCS appearances, they do seem to have lost their luster.  The Capital One Bowl actually posted better rating than the Orange Bowl, and with the addition of the 5th game, getting into one of these contests isn't a de facto reason to think a team is elite.

The others are a bit more interesting.  An MNC is a reason to think a team (and coaching staff) are very good.  There is talk about creating "NFL pipelines" and using that as a recruiting sell, but the guys at Mercer aren't buying it.

The biggest surprise to me is the idea that "current roster depth" isn't an issue, especially when so many top recruits talk specifically about how they want to "get in there and play".  This seems to be a more recent trend, though, and maybe part of the problem is the age of the data.  Additionally, this may not be quite as important to the 150-250 range of recruits, which could balance things out a bit.

So, attributes that do matter (according to the report, that is):

  • Whether the athlete made an "official visit" to a specific college                      
  • Whether the school is in a BCS conference                             
  • The distance from the high school athlete’s hometown to a specific school          
  • Whether the recruit is in the same state as a specific school
  • The final AP Ranking of a specific school in the previous year of competition            
  • The number of conference titles a school has recorded in recent years
  • Whether the school is currently under a "bowl ban" for violating NCAA rules                    
  • The current number of scholarship reductions a school faces for violating NCAA rules             
  • The size of the team’s stadium (measured in terms of seating capacity)
  • Whether the school has an on-campus stadium                       
  • The current age of the team’s stadium   
  • Location, school status and stadium are all tangible, common sense things.  Conference titles indicates how successful a team has been playing recently and it makes sense that recruits are drawn to programs that appear at the top of their game.  One thing that I think is worth a look is the impact of a new coach, which seems to very often carry a 1-3 year spike in recruiting.

    They report that the model predicts with a 70-75% accuracy rate.  Not bad, I think.

    So the fun part: what does Penn State's run up to signing day look like?

    Rank - Player Confidence (0 to 1) Rank  Points Ahead (Behind)
    3 - Jelani Jenkins 0.451 1st 17.9
    86 - Tajh Boyd 0.064 6th (22.8 )
    129 - Peter White 0.102 3rd (18.3)
    194 - Justin Brown 0.362 1st 14.5
    211 - Isaac Holmes 0.068 5th (20.1)

    And more fun with charts; schools who have "lost" players they were predicted to get, and the number of players each of those schools has "poached", or obtained verbals from who were predicted to go to another school.

    School Lost Poached
    Penn State 2 0
    Pitt 0 0
    Rutgers 0 0
    Ohio State 1 3
    Michigan 1 3
    USC 3 3
    Florida 6 0
    Notre Dame 0 2
    Alabama 3 3

    Keep in mind this is a double edged sward.  If you are performing at a very high level in a very rich recruiting state (Florida, for example), you are going to be predicted to take home an awful lot of talent; more than is probably reasonable.

    Penn State's two losses are to Ohio State, who are pretty much getting whoever they want at this point.  Also, notice the big goose eggs next to Pitt and Rutgers.  Penn State who?

    0 recs  |  Comment 17 comments |

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    What I want to know is...

    What is the influence of seeing a full-screen face shot of the head coach imploring the recruit to ‘Come to Penn Staaaaate!!!’?

    There is a tractor in the parking lot, West Virginia license EIEIO. Your lights are on.

    by leeharvey418 on Jan 19, 2009 10:46 AM EST reply actions   0 recs

    Also,

    -Proximity of school to Graham Zug.

    Why do you think Pitt and Buffalo are doing so well?

    by Cairo on Jan 20, 2009 9:40 AM EST up reply actions   0 recs

    Great post, thank you!

    "We hugged as grown men do. It was a great moment. Then, it was business as usual." -- LJ Sr.

    by millzners on Jan 19, 2009 11:17 AM EST reply actions   0 recs

    Au contraire, mon ami...

    In looking through the list of committed players, Kevin Newsome is predicted as going to VPI&SU, though he is ours now (BWA-HA-HA-HA!!!!). Chalk one into the ‘Poached’ column for Penn State.

    On another note, looking at the commits list reveals that of the top recruits who have already committed, ten would have been expected to choose tOSU, while only three would be expected to Come to Penn Staaaaaaate!!!. Unless I die from boredom first, I may have to go through the list for other schools that consistently do well in recruiting and see just how much of an advantage they have going into the process…

    There is a tractor in the parking lot, West Virginia license EIEIO. Your lights are on.

    by leeharvey418 on Jan 19, 2009 1:20 PM EST reply actions   0 recs

    Two other factors not accounted for ...

    … in the 2002-2004 data:

    1) Quality of school’s blog
    2) Number of subscribers to school’s blog
    (both playing a role in the visibility of the players)

    Movin’ on up!!!

    "I want to eat some dessert." - Brandon Ware

    by The Man with One Black Shoe on Jan 19, 2009 2:36 PM EST reply actions   0 recs

    According to their chart,

    Jenkins is the surest ‘lock’ in the list, at .451 for PSU.

    Would certainly be nice.

    'People are about as happy as they decide they want to be'

    by Pete the Streak on Jan 19, 2009 2:49 PM EST reply actions   0 recs

    BCS appearances

    It’s not surprising that BCS appearances aren’t significant, since (1) whether a team is in a BCS conference and (2) conference championships are both included in the model (and are significant). All that BCS appearances would be capturing at that point are at-large bids.

    The fact that the number of NFL players from the school isn’t significant really surprises me, though. Of course, maybe that’s so highly correlated with the other variables, it gets lost, too. Is there a school out there with a large number of players in the NFL that hasn’t had much conference/national success in recent year?

    www.spartansweblog.com
    A statistical look at Michigan State basketball, with a dash of football talk

    by spartansweblog on Jan 19, 2009 5:20 PM EST reply actions   0 recs

    Miami? Throwing it out there, don't know for sure.

    I was out in the trenches, which enables me to paint such a powerful picture, like Apocalypse Now.-Cormega

    by OMEGAMAN on Jan 19, 2009 6:40 PM EST up reply actions   0 recs

    Also, Purdue

    has quite a few. Also, Notre Dame….and they just plain sucked the last few years.

    I bleed Blue and White.

    by Horse N Buggy on Jan 20, 2009 9:18 AM EST up reply actions   0 recs

    Is this why we can't get better basketball recruits?

    So, in a nutshell, high school athletes prefer winning programs that are
    close to home, are in possession of good physical facilities, and are in good
    graces with the NCAA.

    I think I read something on here that said something to the effect of the shitty basketball facilities.

    by Rockin on Jan 20, 2009 2:46 AM EST reply actions   0 recs

    What does "The current age of the team’s stadium" mean?

    There are some very old stadiums at prestigious football programs. Do they mean the most recent upgrade of a stadium?

    by Cairo on Jan 20, 2009 9:34 AM EST reply actions   0 recs

    Figures don't lie

    As noted above with BCS appearances, this is probably one that gets easily drowned under the rest of the factors. They’re not saying so much that a crappy program with a shiny new stadium will draw recruits, but all else being equal, a new stadium tends to be a draw. …All else being equal

    There is a tractor in the parking lot, West Virginia license EIEIO. Your lights are on.

    by leeharvey418 on Jan 20, 2009 9:40 AM EST up reply actions   0 recs

    I understand that, but I guess it's a semantics question

    For example, Indiana will play the 2009 season in an extensively upgraded and renovated IU Memorial Stadium. Had they constructed a new stadium, would the exact same program be more attractive to a recruit accordining to they’re data? In other words, if you were do put in a number in this dataset they’ve created next to “Age of IU Memorial Stadium” would they put in 1960 or 2009?

    by Cairo on Jan 20, 2009 9:47 AM EST up reply actions   0 recs

    Puts hand up...

    The “grammar police” penalty is on me, guys. My bad, my bad.

    by Cairo on Jan 20, 2009 9:50 AM EST up reply actions   0 recs

    Arbitrary number...

    How do you figure the age of Beaver Stadium? Is it the age of the oldest parts of the stadium that used to be across campus by Rec Hall? …is it the time since those stands were moved to the present location? …or is it since the last round of construction that added the SU sections and the luxury boxes? And Michigan Stadium is even more extreme- is the stadium 70+ years old, or will it be new next year?

    I think before any of us lose sleep pondering these questions, we should remember that this figure can get so buried that its only real benefit is as a fifth-round (or so) tiebreaker between two schools like, for instance, Iowa and Purdue that match up in the other criteria much more closely. It’s interesting to a statistician, but at the end of the day, it doesn’t mean a whole hell of a lot.

    There is a tractor in the parking lot, West Virginia license EIEIO. Your lights are on.

    by leeharvey418 on Jan 20, 2009 10:00 AM EST up reply actions   0 recs

    right

    I’d imagine that most programs that are getting new/very upgraded stadiums (also with large capacity, as one of the factors was), tend to be successful programs already, so most of the influence of that factor is already accounted for.

    by The JuggerNitt on Jan 20, 2009 11:49 AM EST up reply actions   0 recs

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