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Data Entry: Zooming in on the Pass Rush

| June 28th, 2022

Almost everything I’ve looked at so far this offseason has been about the offense, so now I want to shift gears and give some attention to returning players and new veterans on defense. That starts today with a closer examination of the pass rush.

In order to do this, I’m using data from Pro Football Focus (PFF) that examine pressures, wins, sacks, and pass rush productivity. Here’s a quick explainer of what PFF means by some of those that are less obvious:

  • Pressure: This is a measure of how often a player bothers the QB – makes him move off his spot, hits him, or sacks him.  It will be defined through the % of pass-rushing snaps that count as a pressure, QB hit, or sack.
  • Win: this is a measure of how often a player beats their block to impact a play within 2.5 seconds. It will be defined through the % of pass-rushing snaps that count as a win.
  • Pass Rush Productivity: this accounts for all sacks, pressures, and QB hits on a per-snap basis, with an added weight given to sacks. PFF doesn’t give an exact formula for how much extra sacks are weighted, but generally a higher number is better.

I’ll examine both all pass rushing snaps and only what PFF defines as true pass sets. These are basically set up to only look at 4-man rushes on standard passing plays, so all screens, play action, designed rollouts, blitzes, 3-man rushes, and exceptionally fast (ball thrown in <2 seconds) or slow (ball thrown in >4 seconds) plays are removed. PFF says that these values tend to be more stable year-to-year, since they are more indicative of actual pass rushing ability.


Edge Rushers

Let’s start by examining edge rushers, where the Bears have three notable NFL veterans: returners Robert Quinn and Trevis Gipson and newly signed Al-Quadin Muhammad.

The table below shows how all three fared in a variety of pass rushing stats in 2021, as well as their rank compared to 93 NFL edge rushers with at least 200 pass rush opportunities. To give a broader frame of reference, the best, average, median, and worst values among that 93-player sample are also provided for each statistic.

Categories highlighted in green indicated the player was in the top 25% of edge rushers (top 23), while red indicates the player was in the bottom 25% (bottom 23).

A few thoughts:

  • If you ignore sacks and look more at the pressure and win rates – which are more stable season to season – Quinn was more good than great as a pass rusher in 2021. That feels weird to say for somebody who finished 2nd in the NFL in sacks, but the extremely low pressure/sack ratio tells us that he produced more sacks than expected based on the pressure he generated, and pressures are generally more consistent than sacks.
    • This tracks with other data showing that Quinn generally took longer to get to the QB than the NFL’s elite pass rushers.
    • Quinn also has a fairly established track record of season-to-season inconsistency. He’s never produced an above-average pass rush productivity ranking in two consecutive years during his career, and he hasn’t had back-to-back seasons with 8+ sacks since 2014.
    • Add it all up, and I think a regression from Quinn is highly likely in 2022. The Bears would be wise to sell high on him now rather than waiting for the trade deadline if they are hoping to get value in return.
  • Trevis Gipson honestly was fairly comparable to Robert Quinn in most of these statistics, which is pretty impressive. He had a very solid year in 2021. His sample size was much smaller (229 pass rush snaps vs. 402 for Quinn), so I’m eager to see if he can repeat that performance. It’s worth noting, however, that his pressure/sack ratio was about as low as Quinn’s, so he could play better this year and still see a dip in sacks.
  • Al-Quadin Muhammad is a bad pass rusher. I really hope the Bears aren’t planning on him doing much to bother the QB, because 2021 was actually the best season rushing the passer of his career, and it was still bad.

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Dannehy: Bears Should Kick Jenkins Inside

| June 23rd, 2022


Before officially demoting Teven Jenkins to the second team, Matt Eberflus and the offensive coaching staff should try him at right guard.

Jenkins’ demotion was a surprise because, if the Bears had any questions about his ability to play right tackle, why didn’t they do more to address the position in the offseason? As it stands, the team promoted fifth-round rookie Braxton Jones to left tackle and moved 2021 fifth-rounder Larry Borom to right tackle, with Jenkins taking snaps with the second team.

Eberflus has said it was always part of the team’s plan to move players around, but that excuse doesn’t make sense for a variety of reasons. For starters, the team didn’t even have Jones until the draft. If they planned on having a draft pick seriously compete for playing time, they would’ve spent an earlier pick on the position. Secondly, it isn’t as if Jenkins is in a rotation, he was firmly on the second team, with Borom switching positions to take Jenkins’ starting reps. Lastly, the idea that they’re getting a good look at offensive linemen at this point is flawed because they have yet to see the players do any blocking.

It’s hard to figure out how Jenkins could’ve lost the job or why they made the move at all, but — anyway you figure it — it doesn’t look good for Jenkins’ 2022 outlook, at least not at tackle.

There is so much we don’t know, but assuming Jenkins is physically capable of playing, the team would be wise to try him at guard instead of forcing a competition at tackle.

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Dannehy: Bears Need Real Value To Trade Quinn

| June 15th, 2022


With news that Robert Quinn isn’t likely to attend the Chicago Bears mandatory camp practices, it seems likely that he would prefer to play elsewhere next season. But the Bears shouldn’t trade him unless they get equal value in return. Based on media reports and what r Ryan Poles has said, the team didn’t prioritize value when Khalil Mack was dealt. They can’t do that again.

Quinn is coming off of a season in which he broke the franchise record with 18.5 sacks, doing so as the only serious pass rush threat for much of the season. While his cap charge is currently slated to be near $18 million — fifth highest at his position — his average salary is tied for 23rd with Randy Gregory (among others). Gregory is 29. Quinn just turned 32. Gregory has fewer sacks in his career than Quinn had last season.

While moving Quinn would guarantee the team is punting on the 2022 season — a tough sell in the locker room — the Bears would save nearly $13 million in salary cap space. Had they done the trade earlier in the offseason, the cap saving was less than $4.5 million. While the free agent market is nearly depleted, the Bears could use those savings in the 2023 offseason, when Quinn’s value likely won’t be as high.

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Dannehy: Lack of Action on OL Incredibly Risky for Ryan Poles

| May 26th, 2022


The 2022 Chicago Bears plan to run the ball and play strong defense, but the lack of upgrades along the offensive line could make that hard to do. While the weapons surrounding Justin Fields aren’t ideal, one can certainly make arguments for Cole Kmet and Darnell Mooney as being high-level players at their positions. Add in David Montgomery, Byron Pringle and Velus Jones Jr. and, well, you get the argument.

But the offensive line? Ryan Poles has left the team in a tricky position.

The most glaring hole on the entire roster right now is right guard where Sam Mustipher could potentially start. Nothing against Mustipher — who showed flashes of being a pretty good center in 2020 — but he has never played the position before and doesn’t seem to be a fit in any way. The team did sign Dakota Dozier, a player who didn’t even make the Vikings roster last year. (And that was a bad offensive line too.) The other options are rookies who were taken late on day three.

Poles can’t even claim to disagree with the assessment of the right guard position. He signed Ryan Bates to an offer sheet, only to revert back to ignoring the position once the Bills matched it.

The most likely bet is that the player who starts the season at right guard for the Bears isn’t on the roster. They have to be hoping that either a viable player becomes available, or an existing player lowers his price tag. Otherwise, we’re looking at flat out negligence and it’s the worst kind of negligence because it could get the team’s young quarterback hurt.

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Dannehy: Scheme Alone Can’t Fix Bears Offense

| May 18th, 2022


Relying on a scheme change to fix a broken offense has proven to be a broken philosophy, especially when the person in charge of that scheme has never done the job before. Luke Getsy made reference to scheme being a reason to believe the offense — specifically the pass catchers — will be better, and while he should have confidence in his own ability, he surely knows the Bears need their players to be better if they’re going to score more points. Getsy is well regarded, but new play callers generally struggle and almost never get time to figured it out.

In the last decade, 26 non-offensive coaches have been hired. Nine of those went with offensive coordinators who were new to the job and the success rate of those coaches is not good. Of those nine, three were fired after just one season and two were canned during or after their second seasons. One was fired with the entire staff after the second season.

There are two young play callers entering with their jobs on the line in 2022.  Mike LaFleur needs his Jets to improve from being in the bottom six of the league pretty much across the board. Scott Turner took over in Carolina during the 2019 season and went to Washington with Ron Rivera, but his offenses have all been near the bottom-10.

The one real success story so far is interesting, as Matt LaFleur had a bottom-10 offense in his lone season running Mike Vrable’s unit in Tennessee before becoming the head coach of the Packers. LaFleur, of course, has been dominant in Green Bay, but we don’t need to talk about that.

As highly thought of as Getsy is, the same could be said for the likes of Joe Brady, Rich Scangarello, Geep Chryst and Rick Dennison.

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Do Justin Fields’ Rookie Fumbles Portend a Fumbler? Data Says It’s Unlikely.

| May 17th, 2022


Despite only starting 10 of 17 games last year, Justin Fields fumbled the ball 12 times, which was the 4th highest mark in the NFL. That’s a real problem. Since fumble recovery is random, meaning you will lose roughly half of your fumbles, that’s an additional turnover around once every two games. Given the strong relationship between turnovers and game outcome, this is a recipe for losing a whole lot of games.

But is this a problem that is likely to continue for Fields? Let’s see what history might be able to tell us.

Fumbling Rookies.

It is surprisingly common for rookie QBs to fumble the ball. A lot. Since 2001, there have been 24 instances of a rookie QB fumbling the ball ten or more times. Looking at the rookies who have played the most, there are 61 rookie QBs in that time span with at least 250 pass attempts, and 22 of them (more than 1/3) had at least ten fumbles.

So, in that regard, Fields is in good company. While many of the QBs on that list went on to bust status, there were plenty of successful QBs as well, including Lamar Jackson, Andrew Luck, Derek Carr, Alex Smith, and Carson Wentz as long-time starters.

This led to a logical follow-up question: do QBs who fumble a bunch as rookies improve after that? In order to explore this, I tracked fumble rate through two methods:

  • Plays per fumble, which includes all pass attempts, sacks, and rushes. This is a measure of how often a QB fumbles compared to how often the ball is in his hands.
  • Hits per fumble, which includes all sacks and rushes as plays in which the QB got hit. This is a measure of how often a QB fumbles when exposed to contact with the ball in his hands.

I should note that this list only includes QBs who had 1000+ career pass attempts total, such that there was a large enough post-rookie sample size to gather meaningful data. This gave a sample size of 17, which includes over 8,000 rookie plays and 40,000 non-rookie plays.

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If Sustained Success is Entirely Dependent on QB Play, Ryan Poles’ Process for 2022 is Questionable

| May 12th, 2022

In his opening press conference as the general manager of the Chicago Bears, Ryan Poles boldly proclaimed his goal to “sustain success over a long period of time.” This is a fairly standard thing to say for a new general manager, because it’s what everybody in the NFL is trying to accomplish. But today I want to evaluate Poles’ approach to his first offseason in charge of a team with that goal in mind.


How to Achieve Sustained Success

Fact 1: Offense is far more stable than defense year over year. To put it another way, defensive success is not sustainable – a fact Bears fans should be intimately familiar with after the last five years. Thus, the main factor to drive sustained team success is going to be sustained offensive success.

Fact 2: Good offensive play is driven by good QB play. This makes perfect sense, and I think we all knew it, but it’s good to have proof to back it up.

Conclusion: The best path to sustained success is a good QB. A brief look at recent NFL history supports that notion:

If you consider making the playoffs to mean success, there have been 18 instances in the last ten years where teams made the playoffs at least three times in a four-year span. Ten of those involved a solid or better QB on a rookie deal as the primary starter, while six more featured future HOF QBs on veteran contracts.

Only two of 18, then, involved solid-but-unspectacular QBs who weren’t on rookie deals. Those were Tennessee with Ryan Tannehill and Kansas City with Alex Smith. So, it is possible to sustain success without a really good QB or cheap solid QB, but it’s a much less likely path.

It’s also worth noting that both of those two found very little success in the playoffs. Only three of nine playoff seasons featured a playoff win, and only one reached a conference championship game. So, if your definition of sustained success involves more than bouncing out of the playoffs early on, those don’t really meet it.

If you want to get more selective and look at playoff success as an indicator of success, this list gets even more QB-dependent.

  • 28 of 40 teams in the conference championship game featured a starting QB with at least one All Pro or MVP in their career, and that doesn’t include Andrew Luck (retired early before achieving either of those) or Joe Burrow (only two NFL seasons so far, seems headed in that direction).
  • Only eight NFL QBs have started at least two conference championship games in the last decade, and six of them have made an All Pro or won MVP.

Again, this doesn’t mean getting a really good QB is the only path to sustained success (see SF with Alex Smith/Colin Kaepernick about a decade ago, or SF with Jimmy Garoppolo the last several years). It’s just the most likely path to sustained success.

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Using Historical Trends to Guide Chicago’s Draft Approach

| April 28th, 2022


Let’s look at historical trends to see where the Bears can expect to find positional value at various points in the draft. This builds very closely off work I’ve done each of the last two years, and here’s a quick recap of the approach:

  • I looked at the last 15 drafts (2007-21) to see how many players at each position were drafted in the top 50 (their 2nd round picks are #39 and 48), top 70 (their 3rd round pick is #71), and top 150 (their next picks are #148 and #150). I didn’t look at the 1st round because the Bears don’t have a 1st round pick this year.
    • My source for this data did not differentiate between CB and S, so I combined those into DB.
    • They did differentiate between interior offensive line and offensive tackle, so I kept those separate.
  • I then used The Athletic’s composite big board, which averages rankings from a number of different draft sources, to compare to historical trends. I focused especially on positions which I believe are the primary needs for the Bears. The idea here is that positions with more players than usual ranked in a given range are more likely to have somebody highly rated slip through the cracks, while positions with fewer players than usual ranked in a given range are more likely to have somebody reach for them to fill a need.

This is my third year applying this approach to the draft, and I was a bit hesitant about it at first, because it seems risky to rely on draft rankings from people who don’t work in the NFL. It’s quite possible that people in the NFL view these players entirely differently. However, I think the track record has been pretty solid over the last two years. For instance:

  • In 2020, I found the Bears should look to grab a defensive back early, because the depth on day three was not very good, and they landed Jaylon Johnson in round two. I also found the value at WR should be good throughout the draft, so the Bears could add there at any point, and they found Darnell Mooney in round five.
  • In 2021, I found the QB class was loaded at the top but not deep, so the Bears should look to take a QB early. At the same time, I found the OT class was historically deep, so they should look to draft one early and another late. They ended up with Justin Fields, Teven Jenkins, and Larry Borom all contributing as rookies.
  • Of course, it hasn’t all been great. In 2020 I said the Bears would not find value at TE in round 2, and they landed Cole Kmet, who has at least been a capable player (even if I don’t think he’s particularly great).

This is definitely an inexact science, and we don’t want to put too much stock in it, but I think it’s a useful exercise to see what positions might have more good players than usual, and thus possibly value for the Bears.


Round 2 (Top 50)

Here is the data for players drafted in the top 50.

  • Because every draft is different, I provided a range from the least to most players at that position drafted in the top 50 picks since 2007, as well as an average.
  • The last column shows how many players from that position are ranked in the top 50 right now according to the composite big board linked above.
  • Positions that are particularly good or bad are highlighted in colors (red for historically low, orange for near the low end of the range, light green for near the top end of the range, and green for historically good).

A few thoughts:

  • It’s a good year for the Bears to need a WR, especially at the top of their draft. There are nine WRs ranked in the top 50 on the composite big board, there have been eight or fewer WRs taken in the top 50 13 times in the last 15 drafts. If history holds here, the Bears should have some solid value options at WR with either of their second round picks.
  • There also seems to be pretty solid value at defensive back, where 12 players are ranked in the top 50 and 13 of the last 15 drafts have seen 11 or fewer DBs selected in that range. The Bears could use starters at outside CB, nickel CB, and safety, so they may look to fill one of those spots in the second round.
  • The rest of the Bears’ biggest need positions are right around their historical averages, meaning there may or may not be value present for the Bears, depending on how the draft falls.

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The Dannehy Draft Guy: Georgia WR George Pickens

| April 27th, 2022


With as many needs as the Chicago Bears have, it would be hard for them to go wrong, regardless of which positions they pick Friday night. But the one player who could drastically change how the team looks going forward is Georgia wide receiver George Pickens.

Pickens is the complete package: size, speed and even blocking ability (something that will likely be important to the Bears). He would provide the Bears and Justin Fields with a big target (six-foot-three) on the outside who can get deep and make plays after the catch. When is the last time the Bears had a receiver like that?

Pickens led Georgia in receiving as a freshman and a sophomore and scored 14 touchdowns in his first 20 college games. He averaged 15 yards per catch for his career, despite some questionable quarterback play.



There seems to be little question that Pickens is one of the 20 most talented players in this draft. The only reason the Bears have a realistic shot at him is because of injuries. He missed most of his junior season after tearing his ACL in March. He came back at the end of the year but wasn’t quite up to speed. He also missed two games as a sophomore.

There have been some reports of character questions with Pickens, though those remarks could also have come from teams hoping he falls — believe very little of what you hear this week.

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My Draft Crush: Memphis WR Calvin Austin III

| April 26th, 2022


It’s no secret that the Bears need a WR, but I would take it even further; they should enter the weekend with the goal of drafting two wideouts they think can contribute right away.

One of those has to be a bigger-bodied WR, which they are sorely missing right now, but my draft crush does not fit that bill.

In fact, Memphis WR Calvin Austin III comes in at the other end of the spectrum for WRs. He stands only 5’7″ and weighed in at the Combine at only 170 pounds. If you’re going to be that small, you need to be an athletic freak to make it at the NFL level, and Austin certainly fits the bill.



This is Austin’s Relative Athletic Score, or RAS, based on his Combine performance. RAS scales everything against historical players at your position from 0 (worst) to 10 (best). As I’ve already said, Austin is tiny, but he scores in the top 8% amongst WRs in literally every athletic testing metric (credit to Kent Lee Platte for RAS data), placing him in the top 6% overall in total athletic ability.

That athleticism certainly shows up when you watch Austin play. He’s both fast and quick, and his change of direction abilities are noticeable in tight spaces. This speed and acceleration lets Austin excel after the catch, as he had the 5th highest yards after the catch/catch mark of all WRs in the 2022 draft.

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