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  • 2017 Consensus Big Board: The Consensus Grades Your Draft


    Guest Arif Hasan

    Who won the draft?

     

    It's pretty clear that when it comes to predicting the outcomes of draft prospects, no one has the market cornered. Prediction is a messy business, and it sometimes feel like prognosticators can get it wrong just as often as they get it right.

     

    Still, we know that the consensus board does a pretty good job at not only predicting the draft but evaluating that talent. Individual experts often get it wrong, but the consensus of experts do not often make missteps. In 2014, the consensus boards beat the NFL and a good chunk of experts when it came to predicting player performance.

     

    So, why not let it grade your draft?

     

    By assigning pick value to each rank and subtracting it from the actual value of the picks used to select players, we can create pretty good approximate grades that—while not accounting for positional need or scheme fit—give us a good idea who did the best job of acquiring value.

     

    The biggest problem with this approach is that it hurts those with the number one overall pick, because the most valuable player they can get earns them zero points; all they can do is avoid value loss.

     

    That's not a big sticking point with me, however, as one should expect to get the best player with the first pick. No one gets gold stars for doing what they were supposed to do. And as you'll see, the Cleveland Browns more than made up for that disadvantage.

     

    Here's who generated the most value from their pick slot:

    Team Value
    Minnesota Vikings 1147.1
    Cleveland Browns 885.6
    Miami Dolphins 710.5
    Washington Redskins 661.2
    Indianapolis Colts 372.5
    Tampa Bay Buccaneers 358.1
    Dallas Cowboys 313.3
    New England Patriots 286.4
    Oakland Raiders 275.6
    Los Angeles Chargers 113.4
    New Orleans Saints 14.1
    Baltimore Ravens -28.0
    Houston Texans -84.0
    Green Bay Packers -138.9
    Arizona Cardinals -165.8
    San Francisco 49ers -225.4
    Atlanta Falcons -229.1
    New York Jets -231.0
    Cincinnati Bengals -237.5
    Buffalo Bills -321.3
    Pittsburgh Steelers -439.1
    Los Angeles Rams -373.6
    Philadelphia Eagles -376.6
    New York Giants -410.0
    Jacksonville Jaguars -416.0
    Denver Broncos -468.5
    Carolina Panthers -838.2
    Detroit Lions -838.6
    Seattle Seahawks -963.0
    Tennessee Titans -1257.9
    Kansas City Chiefs -1386.0
    Chicago Bears -2013.1

    The Vikings are perennial favorites with this method, going all the way back to 2014. They consistently place in the top three of these rankings and place first once again this year. They make almost all of this value with second-round selections, with headliners like Eric Kendricks, Mackensie Alexander and this year, Dalvin Cook.

     

    In this case, the Vikings didn't only do well because of that second-round pick. Out of 11 draft picks, the Vikings gained value on nine of them, only missing out with Ben Gedeon and Rodney Adams.

     

    Subjectively, I would argue that the Cleveland Browns had the best draft and placing second here is a good argument for their overall value. Value aside, however, they nailed positions they needed while remaining patient throughout the draft, not just acquiring three first-round picks, but the quarterback they likely wanted all along in the second round.

     

    The Chicago Bears had a historically poor draft, not only losing significant value in drafting Mitch Trubisky second overall but giving up opportunities to make up for the pick by only selecting four more times... and overdrafting on three of those four occasions.

     

    The Chiefs didn't fare too well either, and didn't make a single value-positive pick (unlike the Bears, who at least gained value with Eddie Jackson). The closest the Chiefs came to achieving value was the selection of Kareem Hunt, who was only slightly overdrafted—and in my opinion was underrated by the consensus board.

     

    I'm sure they won't care if it turns out that Patrick Mahomes is a solid quarterback and Kareem Hunt can shoulder the load, but it does mean they probably reached.

     

    Here are the three-year rankings (2015-2017), where the Vikings once again are overwhelming favorites. It may not have resulted in a playoff win, but it at least means the Vikings are good at selecting players that people think are good.

    Team Value
    Minnesota Vikings 3069.6
    Miami Dolphins 1615.7
    Jacksonville Jaguars 1329.9
    Cincinnati Bengals 883.6
    Buffalo Bills 513.1
    New York Jets 131.4
    Pittsburgh Steelers 125.6
    Cleveland Browns -30.1
    Washington Redskins -155.5
    Houston Texans -330.4
    Dallas Cowboys -486.6
    Green Bay Packers -532.2
    Baltimore Ravens -533.6
    Los Angeles Chargers -809.8
    Atlanta Falcons -905.9
    Indianapolis Colts -912.4
    Denver Broncos -1008.7
    New Orleans Saints -1023.6
    San Francisco 49ers -1033.7
    Oakland Raiders -1061.9
    New York Giants -1130.3
    Detroit Lions -1169.1
    Chicago Bears -1549.0
    Tampa Bay Buccaneers -1654.9
    Carolina Panthers -1659.6
    Arizona Cardinals -1873.4
    Seattle Seahawks -1878.2
    New England Patriots -1945.1
    Philadelphia Eagles -1956.2
    Tennessee Titans -2917.9
    Los Angeles Rams -3033.3
    Kansas City Chiefs -3332.7

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    Great analysis, thanks!

    Couple questions, because I performed similar analysis and got somewhat different results.

    First, can you explain why SF is as low as it is? It seems like getting Solomon Thomas (rank 2) at pick 3 and getting Reuben Foster (rank 7) and pick 31 would more than offset any bad picks in later rounds.

    Second, are you using the standard 3000, 2600, etc. draft value chart? If not, this could also explain the discrepancy.

     

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    Hi, Caleb!

     

    I summarized my process quickly to avoid confusion, but I more precisely used the interquartile mean of all of the point values implied by a player's ranking in each of the 45 draft boards. That means though Solomon Thomas is ranked second overall in the consensus board, his point value comes in lower (spent points: 2434.2, acquired points: 2255.4). The 49ers lost about 180 points on Thomas, gained 750 points on Foster, lost 200 points on Witherspoon, gained 70 combined with George Kittle and D.J. Jones, and lost big points on Joe Williams and C.J. Beathard (-223.9 and -324.2). They lost another 100 combined with Pita Taumoepenu and Adrian Colbert.

     

    I also used a logarithmic function that mimics that Jimmy Johnson trade chart, but that likely does not result in large discrepancies.

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    Makes sense, thanks for the clarification. The IQM makes sense and is probably more robust for athletes that are ranked _really_ closely.

     

    My hunch is that the logarithmic function makes a really big difference in later rounds. Otherwise, I have the 49ers losing only a little on Williams and Beathard (-41.8 and -82.6). While the point chart used might be a matter of preference, the big benefit to your logarithmic function is that later rounds actually matter! Using the Jimmy Johnson trade chart, a team's score is just about set in stone after round 2.

     

    Thanks again for the reply.

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    I'll be curious to see how your method holds up 4-5 years after each draft. The Vikings are doing really well in drafting "players that people think are good", but unfortunately, "players that people think are good" don't always turn out to actually be good.
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