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[Wired] Lakers Offense Could Be Better Without Kobe

Discussion in 'NBA Dish' started by pearlon, Aug 19, 2009.

  1. pearlon

    pearlon Member

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    I love articles like this where science and sports merge. I'd be interested to see how network theory works when applied to the Rockets, especially when taking away our most efficient scorerer: Yao Ming.

    http://www.wired.com/wiredscience/2009/08/basketballphysic/

    Lakers Offense Could Be Better Without Kobe
    By Alexis Madrigal August 18, 2009 | 4:18 pm | Categories: Physics

    Sorry, Lakers fans, Kobe could be holding your team’s offense back.

    Elite players could be taking too many shots for optimal offensive efficiency, according to new mathematical analysis using network theory.

    Treating each player like a pathway to get the ball into the basket, a physicist has deduced that the most efficient path to a basket does not always run through star players like Kobe Bryant, Lebron James, or Ray Allen, even though they are better shooters than their teammates.

    “The idea that a team could improve after losing one of its best players may in fact have a network-based justification, and not just a psychological one,” wrote Brian Skinner, a physicist at the University of Minnesota, Minneapolis, in a paper posted to the arXiv.org. (Skinner is no relation to the other Brian Skinner, Baylor standout, Los Angeles Clippers power forward and 22nd pick in the 1998 NBA Draft.)

    First, Skinner explains how people making the best decisions for themselves can hurt the efficiency of a total system. Let’s say that there are two roads, a highway and an alley shortcut. The alley takes up to ten minutes, but sometimes less depending on traffic, and the highway always takes ten minutes. Individuals realize they could save time by taking the alley, so they do. Unfortunately, when everyone takes the shortcut, it ends up taking the full ten minutes.

    It’s a suboptimal arrangement that statisticians call “the price of anarchy.” If you force some cars to take the highway to give other cars a faster alley commute, then the average commute time goes down.

    In more complex simulations, even closing down some roads actually leads to reduced traffic — and some real-world evidence [pdf] from cities like San Francisco appears to agree with theory, Skinner wrote.

    By analogy, perhaps, getting rid of Kobe Bryant could actually make things better by dispersing the “cars” (i.e. possessions) more evenly. Offensive balance could reduce “traffic,” making putting the ball in the basket easier.

    The key assumption is that a player’s real shooting percentage goes down as they take a greater percentage of a team’s shots. Skinner’s stats show this appears to be the case with Allen — and it stands to reason, too. As a player dominates an offense more, the defense adjusts. They double the player, devote more attention to him, and likely deny him high quality shots that are likely to go in. (We might call this the Iverson effect.)

    So, if one were to distribute the number of shots a player takes on the basis of their shooting skill, the math says the team’s overall shooting percentage would go down. If Ray Allen takes only as many shots as the rest of his teammates, he will make more of them than he would if he put it up on 40 percent of the possessions.

    By distributing shots more evenly, then, the team’s overall shooting efficiency could go up, even if the other players on the team are only average shooters. For the star player, it’s a bit like that old adage, “You’re promoted until you’re incompetent.”

    Of course, Skinner’s analysis doesn’t take defense into account and the interplay between the shooting skills of the best players versus the worst players could change the results somewhat, but it will probably add fuel to the barbershop debates of Brooklyn over whether or not the Knicks really would have been better without Patrick Ewing.
     
  2. Air Langhi

    Air Langhi Contributing Member

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    I thought people with PHDs were supposed to be smart.
     
  3. BetterThanEver

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    There is a good explanation of why Brian Skinner is a physicist and not an NBA coach or GM. :cool:
     
  4. Rocket86

    Rocket86 Member

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    If they do not need Kobe then the Rockets would gladly get him. :D Sometimes just the mere common sense is enough. Things need not have to be complicated. :D
     
  5. Blake

    Blake Member

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    I'm assuming his models cannot calculate the value of having Kobe Bryant on your team when you are down in the fourth quarter or need a big shot...or his defense on the other end
     
  6. sbyang

    sbyang Member

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    His model doesn't account for the fact that Ron Ron would jack up 30 shots if Kobe wasn't there...

    Having said that, I do get the feeling that the Lakers don't use Gasol enough, Gasol should have more shots, even at the expense of some of Kobe's shots.
     
  7. meh

    meh Member

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    I can accept the premise that many times, star players take too many bad shots for their own good. And that the Lakers offense would improve if Kobe tries to pass more rather than look for his own shots all the time.

    But the idea that a team without its superstar would perform better offensively is just absurd. Does not pass the common sense rule.
     
  8. robbie380

    robbie380 ლ(▀̿Ĺ̯▀̿ ̿ლ)
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  9. Air Langhi

    Air Langhi Contributing Member

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    Pau Gasol lead teams have not been very good.
     
  10. robbie380

    robbie380 ლ(▀̿Ĺ̯▀̿ ̿ლ)
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    and the argument isn't to get rid of kobe. the argument is to have him dominate the ball less and distribute to his teammates more. we all know the lakers are better when kobe facilitates the offense for his teammates since he is such an amazingly talented player.
     
  11. durvasa

    durvasa Member

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    Optimal distribution of shot attempts to maximize overall team efficiency is an interesting topic. The article puts it too simply when it says a team's efficiency will always go up if the shots are more evenly distributed. That's not necessarily optimal. And while the assumption that a player's efficiency will decrease with greater involvement sounds reasonable on average (good discussion on this concept in Dean Oliver's book Basketball on Paper), on a player-by-player basis this may not hold consistently and certainly not to the same degree. So I think it would be hard to make strong conclusions on how many shots a particular player should be getting.

    As for the Lakers, they've been top 10 in offensive efficiency every year Kobe has been with them. Meanwhile, the Rockets haven't cracked the top 10 in 8 seasons. I don't think offense is a big issue for them.
     
  12. MC Welk

    MC Welk Member

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  13. Shroopy2

    Shroopy2 Member

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    It just seems odd how through the ages science and real life dont always come together cohesively. 6 expert scientists can work on a social study in a lab for days on end and be absolutely CONVINCED their hypotheis is practical to real living conditions. And be full of fail. I'm not discrediting science, nor the point of this topic. Just seems some scientists can't hypothesize and chew gum at the same time.
     
  14. RedRedemption

    RedRedemption Member

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  15. panda8six

    panda8six Member

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    this thread makes me sad, not because of what the article says, but because it shows that people post without reading the original material first.

    it's not saying that the lakers offense would be better without kobe. it's actually saying the opposite. kobe for a given possession may be the most efficient way to score, but if every possession goes through kobe, the efficiency drops drastically.

    one of the points that the article makes is that teams seem to overload possessions on a single player, when really that player should only take a few more shots than some other teammates. so kobe should still probably shoot the most out of anyone on his team but probably not as much as he does (esp. with the talent on that roster).

    i don't see how this is anything new or different from what most people think. we've all seen instances where kobe takes a bad shot and the lakers would've benefited from that possession going somewhere else. i'd like to hear the logic for you guys blasting this article.
     
  16. RedRedemption

    RedRedemption Member

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    Brian Skinner has already commented on this issue.
     
  17. Raven

    Raven Member

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    Stars get calls. That's why the team approach will only take you so far.
     
  18. Tha TC

    Tha TC Member

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    [​IMG]
     
  19. AstroRocket

    AstroRocket Member

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    Damn, that was a long way to say, "Good offensive players draw more attention from the defense, and when they do, they should pass."
     
  20. sbyang

    sbyang Member

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    Lets say Kobe takes 30 shots a game, Kobe had an epiphany after reading the article and decides to take 10 shots a game. Where do you suppose those extra 20 shots go? Will they goto the 2nd best player, Pau Gasol? Will they goto high percentage guy in Bynum? Well maybe those guys can split 5 of those shots because Ron Ron is taking the other 15.

    The Lakers are also the only team that fits so well into his article, they have some great offensive players that probably don't get enough touches because everyone defers to Kobe. Lets apply his little theory to the Cavs and Heat, do you think those teams are going to get more efficient when Lebron and Wade decide to share the ball?
     

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