|
|
![]() |
Topic Starter |
www.nfl-forecast.com
Join Date: Sep 2000
Casino cash: $-478231
|
My fascinating study of the NFL draft
All the trade down talk got me thinking if there was a objective way to analyze this. So I came up with a methodology to assess the value of picks.
I basically looked at every draft from 2007 to 1993 (15 years worth of data). I considered picks 1, 5, 10, 15, 28 and 29. To rate the players, I used Pro-Football Reference's Approximate Value, which is an attempt to rate a player's contribution to his team. I compared approximate value per year for each pick: the higher the value the better the picks turned out to be. I then calculated the ratio of (draft value points)/(approximate value per year). The lower this ratio, the better the value of the pick. Here are the results (first entry is pick, second is draft value points, third is approximate value per year, fourth is draft value points required per unit of average value per year).
For picks 1 through 15, there is a trend where the players drafted earlier ended up having better careers. But at pick 28 a funning thing happened in which players picked at 28 were better than those picked at 15 and those picked at 10. Looking at the list of players, Trevor Pryce and Derrick Brooks were two really good players picked at 28. But even removing those players, would only drop the AVPY to 4.75. So I analyzed round 29 and it turned out to yield at least as good of players as those drafted at 15. What's going on? Teams that draft later are better. They probably make better picks than those picking at 15. But this artifact can be overcome by picking as well as the good teams. The other factor is that good teams surround those 28 and 29 picks with better talent, so the players have a better chance of making an impact. The last column is really interesting. It is the number of draft value points that a team needs to spend in order to get a unit of NFL production for each pick. You get a lot more value by picking late than you do picking early. For example, drafting at pick 5 has the same number of draft value points as picking at 15 plus either 28 or 29. Picking at 5 you can expect to get 7.5 points of NFL production per year (Peyton Manning averages about 20 points of NFL production per year). But if you were instead to pick at 15 and 28 or 29 (approximately the same number of draft value points) you could expect about 11 points of production. One final caveat. It is better to concentrate NFL production in fewer players. For example, I'd rather have one player contributing 10 points of production than two players contributing 5. The reason for this is that with the player contributing 10, you can put another player on the field. If he contributes anything, that pair will be better than the pair contributing 5 each. I do think that the draft value chart might be flawed. What does this mean for trading down? I think I'd rather have two players around 6 AVPY would be better than one contributing 7.5. Does that mean always trade down? No. If you really believe in a player at 5 you should take them. But if you are ambivalent, trading down makes a whole lot of sense. Last edited by cdcox; 04-18-2010 at 07:21 PM.. |
Posts: 46,032
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2 |
www.nfl-forecast.com
Join Date: Sep 2000
Casino cash: $-478231
|
I hit submit too soon. It's not fascinating yet.
|
Posts: 46,032
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#3 |
A certain set of skills
Join Date: Dec 2003
Location: texas
Casino cash: $10026683
![]() |
|
Posts: 25,265
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#4 |
Don't Tease Me
Join Date: Dec 2000
Location: KS
Casino cash: $11047037
|
__________________
|
Posts: 95,626
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#5 |
Fish are scared of me
Join Date: Nov 2001
Casino cash: $-1439523
|
So , the #15 pick is the best value ?
|
Posts: 40,646
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#6 |
www.nfl-forecast.com
Join Date: Sep 2000
Casino cash: $-478231
|
|
Posts: 46,032
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#7 |
Quit your bullshit
Join Date: Jul 2005
Location: Bored of winning
Casino cash: $10052799
|
Picks 28 and 29 went to better teams. Those teams generally have better coaching, better systems, and better scouting.
__________________
Today is not a good day to be a pussy. |
Posts: 41,870
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#8 | |
www.nfl-forecast.com
Join Date: Sep 2000
Casino cash: $-478231
|
Quote:
But if you are going to become a better team, you better count on having better coaching, a better system and better scouting. If you think you can pick as well as the good teams, and coach as well as the good teams, it can pay off to trade down. If you don't think your scouting and coaching is better than the good teams, you should go home and let someone else have a chance at running the team. As I mentioned, I would never trade down, if I was convinced a player on the board was a difference maker or if I needed a QB and one was sitting there. |
|
Posts: 46,032
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#9 | |
Sarcasm
Join Date: Dec 2007
Location: Olathe
Casino cash: $3452900
|
Quote:
|
|
Posts: 21,178
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#10 |
Don't Tease Me
Join Date: Dec 2000
Location: KS
Casino cash: $11047037
|
you don't think that player 28 and 29 were drafted to teams around the super bowl level could be influencing things a little bit?
__________________
|
Posts: 95,626
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#11 | |
Seize life. Be an ermine.
Join Date: Jul 2001
Location: My house
Casino cash: $-472449
![]() |
Quote:
Nice analysis, cdcox. I've long had the theory that there's a discontinuity in the draft that can be exploited in theory. Since each draft is unique, you're going to have some drafts where the draft chart overvalues higher picks and others where it overvalues lower picks. A person who can figure out what type of draft it is could conceivably stack the deck in their favor by trading up or down even if they give up "draft points". If it's a bad draft at the top, you can accept fewer points than the chart shows and still come out ahead. Same with trading up.
__________________
Active fan of the greatest team in NFL history. |
|
Posts: 145,274
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#12 |
www.nfl-forecast.com
Join Date: Sep 2000
Casino cash: $-478231
|
Here are the players analyzed:
Pick 1. Jamarcus Russell Mario Williams Alex Smith Eli Manning Carson Palmer David Carr Michael Vick Courtney Brown Tim Couch Peyton Manning Orlando Pace Keyshawn Johnson Ka-jinta Carter Dan Wilkiinson Drew Bledsoe Pick 5. Levi Brown AJ Hawk Cadalac Willams Seat Taylor Terrence Newman Quentin Jammer Ladanian Tomlinson Jamal Lewis Ricky Williams Curtis Enis Bryant Westbrook Cedric Jones Kerry Collins Trev Alberts John Copeland Pick 10. Amboi Okoye Matt Leinart Mile Williams Dunta Robinson Terrell Suggs Levi Jones Jamal Reynolds Travis Taylor Chris McAlister Duane Starks Chris Naeole Willie Anderson JJ Stokes Jamir Miller Jerrome Bettis Pick 15. Lawerence Timmons Tye Hill Derick Johnson Michael Clayton Jerome McDougle Albert Haynesworth Rod Gardner Deltha O'Neal Anthony McFarland Anthony Simmons Yatil Green John Mobley Ellis Johnson Wayne Gardy Wayne Simmons Pick 28. Joe Staley Mercedes Lewis Luis Castillo Chris Gamble Andre Woolfolk Jerramy Stevens Derrick Gibson Rob Morris Andy Katzenmoyer RW McQuarters Trevor Price Jerome Woods Derrick Brooks William Floyd Thomas Smith Pick 29. Ben Grubbs Nick Mangold Marlin Jackson Michael Jenkins Nick Barnett Mac Colombo Ryan Pickett R Jay Soward Dmetrius Underwood John Avery Chris Canty Jamain Stephens Blake Brokermeyer Derrick Alexander George Teague |
Posts: 46,032
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#13 |
Diablo Negro
Join Date: Sep 2003
Casino cash: $-327338
|
Amazing none of the draftobators have weighed in here.
|
Posts: 74,286
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#14 |
A certain set of skills
Join Date: Dec 2003
Location: texas
Casino cash: $10026683
![]() |
Let's pick AJ Hawk at number 5.
|
Posts: 25,265
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#15 |
Hockey Town
Join Date: Apr 2005
Location: Kansas City, Missouri
Casino cash: $-512950
|
He's only using certain numbers for one, and for 2 how do you quantify what production is from certain positions compared to others?
Hey you could take a guard first and get production, doesn't make it a good pick when productive guards go in the middle rounds. You use the draft to maximize the value of all your picks, not just to "uh lets take something safe so we make sure we don't get a bust". |
Posts: 115,257
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() ![]() |
|
|