Should really crosspost from Travdogg's thread here. I'll go do it.
Hat tip: Obie Wan bringing data fire
In honor of my friends who work in higher ed. I feel it’s time for a full refresher on the "Runningbacks Don't Matter 101" course as teams ready for their next big exam next week. The data is overwhelming.
https://twitter.com/JoeyIckes/status/1649459088428859413
The studies on the running game go back to as early as 2011 when Brian Burke clarified just how inefficient running the ball was compared to passing.
https://slate.com/culture/2011/11/nfl-offense-running-for-three-yards-is-like-going-backwards.html
Then in 2014 Dr. Ed Feng looked at 10 years of data that showed that rushing efficiency contributed to only ~4.4% of the variance in wins, vs the passing game contributing ~62%
https://thepowerrank.com/2014/01/10/which-nfl-teams-make-and-win-in-the-playoffs/
Around 2017-2018 the data really cranked up on RBs themselves.
Josh Hermsmeyer looked at 10 years of rushing data, and found that two factors accounted for 96%(!) of rushing gains... Those two factors?
Field position, and # of defenders in the box...
https://fivethirtyeight.com/feature...king-success-isnt-the-linemen-its-sean-mcvay/
Then Eric and George from PFF added to that study, finding that in addition to Josh's two factors, the actual run concept on a play moves the needle in rushing EPA more than the quality (determined by PFF grade) of the actual ball carrier.
https://www.pff.com/news/pro-are-nf...-replaceable-the-story-of-the-2018-nfl-season
Add that to the study by Ben Baldwin showing that RBs drafted in the top-20 are no better than the league average on a yards per carry basis. There’s also a nugget in here about RBs having the highest 1st rd bust rate of all offensive positions
Don’t do it. Like, ever.
https://www.fieldgulls.com/2018/2/2...uon-barkley-leonard-fournette-ezekiel-elliott
Since we know with these studies (and others) that running backs have very little influence on the success of a running game, and that running game success has little impact on winning games, the argument moves to the passing game.
Does a RB matter if he can be a pass catcher?
Well, in this study, Eric Eager (again) shows that passes thrown to RBs are the less efficient, less valuable, and less stable year over year, than targets to any other position.
https://www.pff.com/news/pro-pff-forecast-examines-value-of-coverage-and-receiving
- Ben Baldwin confirmed that study in this one, where his data showed that targets to RBs have about 1/4 of the EPA per play of targets to TE, and even less vs targets to WR, and a lower success rate (positive EPA) than targets to TE or WRs.
- The best catchers of the football are the players who play positions primarily geared toward, well, catching the football.
https://theathletic.com/1143546/201...-latest-nfl-craze-that-doesnt-make-any-sense/
The next question would be, what if a RB can line up as a wide receiver or in the slot on some plays. Does that change the equation?
Back to Eric and George at PFF... RBs lined up in the slot were far less efficient than WRs and TEs lined up in the slot.
What's the true value of a slot weapon in today's NFL market
PFF Data Scientists Dr. Eric Eager & George Chahrouri take a deeper look at how valuable a weapon from the slot is for NFL offenses, and how pivotal a slot receiver is to offensive success.
https://www.pff.com/news/pro-examining-the-value-of-offensive-slot-weapons
So if the running game itself doesn't help you win, the RB doesn't impact the running game, and regularly throwing to a RB is a losing proposition, maybe there are secondary benefits?
Maybe having a good RB & a good running game helps the play action game?
Well our friend Ben found that "teams don't need to run often -- or run well -- to set up play-action. Play-action works for teams that run frequently, infrequently, well, or poorly"
https://www.footballoutsiders.com/stat-analysis/2018/further-research-play-action-passing
Ok so then maybe a good running back and a good running game keeps the defense rested?
Well FBO did the work & found that "the main - and perhaps only - channel through which an offense can help a defense on a per-drive basis is through field position."
Defense and Rest Time
Do defenses really wear out over the course of a game? Do defenses benefit from long drives that give them more time to rest on the sideline? Guest columnist Ben Baldwin investigates.
https://www.footballoutsiders.com/stat-analysis/2018/defense-and-rest-time
So in review of our review... Running backs don't help the running game, they're inherently inefficient in the passing game compared to WR's and TEs. They don't improve play action effectiveness, and they don't help your defense...
Additionally, drafting RBs high is not "safer" than other positions, and does not correlate to better production from the RB position.
You just can't legitimately justify the idea of spending premium (picks or $$) on the running back position, with any quantifiable measures.