Twitter, sacks & the balance of NFL games

Social media and the age of Twitter are new to me.  Last season, while working as the Omaha Nighthawks’ Director of Player Personnel, PR encouraged me to open a Twitter account.  Initially it was just a novelty.

“Wow this latte at Starbucks is a good one”.

“First and goal on the two, hope we score”.

It was difficult to expound on the day to day drudgery that can be all of us, and my account soon ran dry for a meager number of followers.

Blinded by the light

As a Player Personnel Chief, I’ve always prided myself in staying one step ahead of technology and though I’m no card carrying member of the “Geek Squad”, I’ve usually kept up with the latest and greatest gadgets and nuances.  But Twitter was moving at lightning speed and I knew I needed help.  I turned to a group that specializes in catching up the Baby Boomers with present day communications and my Twitter account was soon back up and running.

A “Reconnection”

The past few weeks I’ve found a connection with my former team’s fan base.  They’re a passionate group, looking at the world through “orange & blue” colored glasses.  This town has never known a drought like they’re currently going through, so to say that this past Monday Night Football’s loss to the Oakland Raides was continuation of a current state of “aggravation“ would be an understatement.

The “twitter ethos” was running crazy.  I chose to dive in with both feet.

@BroncoTalk @BroncosForums Feel the frustration out there. Unload. What do you think the problems are?

Bronco fans were more than happy to express their opinions and offer up questions for their former GM.

Just a taste of what rolled in all night.  I sympathetically gave my “expert” opinion on what I had seen; inconsistencies up front, new coaching staff, injuries to the interior defensive line, struggles in the red zone.  I tried to offer straight up insight and give some “glimmers of hope” to the beleaguered “orange masses”.  Most of my thoughts centered on Player Personnel.

Putting analytics to the problem

Having a few days to think about it, I turn to my friend Brian Burke’s article “The Advantage of Sacks” from Advanced NFL Stats.  Burke explains the effect on the probability of gaining a first down after a play results in a sack and lost yardage, as well as the effect on the expected number of points by down from any distance on the field.

Burke says;

If we average the expected points of all situations in which there wasn’t a sack, and compare it with the average expected points following plays that did result in a sack, we get a difference of 2.0 points. In effect, a sack swings the balance of the game by an average of 2 points in favor of the defense, either by forcing a punt or a longer FG try, or even just putting a team in a predictable passing situation.  That’s a big swing for a single play. A turnover is generally worth 4 points, so a sack could be thought of as half as good as a fumble or interception.

With some basic math I took Denver’s 3 turnovers (swing of minus 12 points), matched them with Oakland’s single “cough up” that gave back 4 points.  Took that loss of 8 points and factored in the net of 4 sacks that Oakland handed the Bronco offense, an additional 8 point deficit.  According to Burke’s analysis, Denver was giving a 16 point swing on average.  The game finished much closer (23-20 Oakland) but 7 of Denver’s points were accounted for off a 90 yard punt return & a final 2:00 minute drive versus a “prevent defense”.

I then put the predictive measure against 6 random games and the results were similar (only MIN vs SD not following the premise on the final score).

Team Score Turnovers Sacks Net Team Score Turnovers Sacks Net
Green Bay 42 0 3 (+6) +6 New Orleans 34 1 (-4) 2 (+4) 0
Buffalo 41 1 (-4) 2 (+4) 0 Kansas City 7 3 (-12) 1 (+2) -10
Jacksonville 16 1 (-4) 2 (+4) 0 Tennessee 14 1 (-4) 2 (+4) 0
Detroit 27 1 (-4) 2 (+4) 0 Tampa Bay 20 2 (-8) 0 -8
Minnesota 17 1 (-4) 2 (+4) 0 San Diego 24 2 (-8) 2 (+4) -4
Arizona 28 1 (-4) 4 (+8) +4 Carolina 21 1 (-4) 2 (+4) 0

So Bronco fans take note.  Your next opponent (Cincinnati Bengals) surrendered 4 sacks and netted a minus 8 points to Cleveland.  Like San Diego in Week 1, they too found a way to win despite Burke’s formula.  But if you want to turn around your fortunes in Week 2, find your rush & hold on to the ball.  At least that’s what the math says.

Enhanced by Zemanta

Tags: , , ,

Ted Sundquist

Author:Ted Sundquist

Ted Sundquist is a Houston, Texas native. For six seasons (2002-2008) he was the General Manager of the Denver Broncos Football Club and was employed with that organization for sixteen years (1992-2008). He was elevated to GM by Broncos owner Pat Bowlen after having been pursued by both the Chicago Bears and Atlanta Falcons for similar positions in 2001 & 2002. He was a finalist for President of the Seattle Seahawks in 2006 & GM of the Kansas City Chiefs in 2008. He served as a front office executive with the Omaha Nighthawks of the United Football League in 2010 & was recently considered for the San Francisco 49ers GM position. Sundquist sits on the Athletic Foundation Board for the United States Air Force Academy and is currently a college football analyst for the The Mtn. Network - Comcast/CBS Sports which covers Mountain West Conference Football.

No comments yet.

Leave a Reply

*