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Fields in Focus (6/8): The Explosive Plays

| May 10th, 2023

Today is the sixth of eight articles taking a closer look at Justin Fields’ 2022 season.

All data comes from Pro Football Reference‘s Game Play Finder, unless otherwise noted.


Explosive Plays

I’ve been tracking explosive plays for several years because I found they have a strong correlation to total points scored by the offense. Therefore, they’re an important indicator of offensive success; by and large, good offenses produce more explosive plays.

The exact criteria I use for explosive plays are runs that gain 15 or more yards and passes that gain 20 or more yards. This is borrowed from ESPN Stats.

The table below shows how the Bears ranked in explosive runs, explosive passes, and total explosive plays compared to the other 31 NFL teams last year. Areas where they were in the top 25% are highlighted in green, while those in the bottom 25% are highlighted in red.



A few thoughts:

  • Fans might remember that Justin Fields missed two games with injury last year, and these numbers change ever so slightly if you look only at the 15 games Fields started and extrapolate those to a 17-game season. That would bring them to 73 total explosive plays, which would rank 16th.
    • Most of this series has been looking at Fields from week 5 on only, since there was such a noticeable change in his performance after a dismal first month. Focusing on those games would slightly bump the Bears up to 74 explosive plays (15th) when extrapolated to a full season.
  • These numbers are not different enough to change the general conclusions. The Bears had one of the most explosive rushing attacks in the NFL but were one of the least explosive passing games. This is probably not a surprise to any Bears fans who watched the games last year. Overall, that worked out being around average in total explosive plays.

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Fields in Focus (5/8): Performance Under Pressure

| May 9th, 2023

Today is the fifth of eight articles taking a closer look at Justin Fields’ 2022 season.

All data comes from Pro Football Focus (PFF) unless otherwise noted, and Fields’ stats are only from Week 5 on, as was explained in part one of this series.


Under Pressure

We’ve already seen that Fields was under pressure very frequently, so how did he hold up when that happened?

The table below shows how Fields performed in a wide variety of statistics when kept clean (blue) vs. pressured (orange), and also includes Fields’ rank out of 33 total NFL QBs who had at least 240 pass attempts. Information on the spread of all NFL QBs is also provided for each stat. Cells highlighted in green indicate Fields was among the top 25% of QBs in this category, while those in red indicate Fields was in the bottom 25% of QBs. A further explanation of big time throws and turnover worthy plays was given in the play action article; generally, more big-time throws is good, and more turnover-worthy plays is bad.



A few thoughts:

  • Fields actually performed quite well under pressure compared to his peers, as his yards/attempt and big time throw rate were both among the best in the NFL.
    • This was a real area of growth from his rookie season, when Fields struggled tremendously under pressure. That could point to Fields starting to adjust to the speed of NFL defenses.
    • This matches what we saw in the time to throw article. Fields is at his best when he can hold the ball and look to push it downfield. Pressured throws will of course be slower developing plays that go farther downfield. The average throw time without pressure is 2.4 seconds, while that jumps to 3.5 seconds on pressured passes, and the average target depth increases from 7.6 to 10.7 yards.
    • However, the downside of that is the high turnover worthy play rate and the huge number of sacks (which aren’t shown here because you can’t be sacked if you aren’t pressured), just like with the quick vs. slow breakdown.
  • On the flip side, Fields needs to perform better when kept clean. His yards/attempt mark was actually worse in a clean pocket compared to when he was pressured, which is very bizarre considering the NFL average is an improvement of almost two yards/attempt.
    • This is a huge change from his rookie year, when he was among the best passers in the NFL in a clean pocket. I find that a bit confusing, as performance from a clean pocket is fairly stable from one season to the next.
    • This likely has significant overlap with the difficulties in the quick-hitting game that we saw earlier in this series. Most of those plays are going to be in the clean category, and Fields was really bad there.
    • I also wonder how much Chicago’s abysmal WR group factored into this. Fields’ clean throws came at an average of over 2.7 seconds, the longest in the NFL and an increase of from the 2.6 seconds he saw as a rookie, but his average target depth on these passes dropped by over 2 yards from his rookie season. Could it be that nobody was quickly getting open down the field, forcing Fields to hold the ball a tick longer and still dump it off?

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Fields in Focus (4/8): Fields Under Pressure

| May 8th, 2023

Today is the fourth of eight articles taking a closer look at Justin Fields’ 2022 season.

All data comes from Pro Football Focus (PFF) unless otherwise noted, and Fields’ per-snap stats are only from Week 5 on, as was explained in part one of this series. (Volume stats are still season-long for an easy comparison to other QBs.)


Pressure Frequency

Like we saw in his rookie season, Fields was under heavy pressure in 2022. PFF had him pressured on 45% of drop backs, the worst rate of 33 qualified QBs and 12% higher than the NFL average. Pro Football Reference, which is more selective with what they consider a pressure, had him at a 27% pressure rate, the 3rd worst mark in the NFL (range from 13% to 29%, with an average of 21%, quick side note that this is full season, not just from week 5 on).

The table below shows how frequently PFF blamed pressure on each position. Fields’ stat is provided, and his rank compared to the other 33 QBs, as well as the range of the other qualifying QBs.  Cells where Fields ranked in the top 25% are highlighted in green, while cells where Fields ranked in the bottom 25% are highlighted in red.



A few thoughts:

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Fields in Focus (3/8): Play Action and Time to Throw

| May 5th, 2023

Today is the third of eight articles taking a closer look at Justin Fields’ 2022 season.

All data comes from Pro Football Focus (PFF) unless otherwise noted, and Fields’ stats are only from Week 5 on, as was explained in part one of this series.


Play Action

Let’s start by looking at how Justin Fields did on play-action drop backs compared to standard passing plays. Before I present the full data, I want to briefly explain two PFF stats that will be used:

  • Big Time Throw: these are best described as a pass with excellent ball location and timing, generally thrown further down the field and/or into a tighter window. In other words, these are really good, difficult passes that should result in highly valuable big plays. A higher % here is better.
  • Turnover Worthy Play: These include fumbles in the pocket, interceptions thrown, and interceptable passes that were not caught. A lower % here is better.

Both of these stats will admittedly have some subjectivity, but they provide a useful glimpse into how frequently a QB makes a really good play vs. a really bad one.

The table below shows how Fields performed in a wide variety of statistics in play action (orange) vs. other dropbacks (blue), and also includes Fields’ rank out of 33 total NFL QBs who had at least 240 pass attempts. Information on the spread of all NFL QBs is also provided for each stat. Cells highlighted in green indicate Fields was among the top 25% of QBs in this category, while those in red indicate Fields was in the bottom 25% of QBs.

A few thoughts:

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Fields in Focus (2/8): Where and How Effectively Fields Threw the Ball

| May 4th, 2023

Today is the second of eight articles taking a closer look at Justin Fields’ 2022 season.

  • Part 1: Comparison to rookie season and growth throughout 2022
  • Part 2: Where and how effectively Fields threw the ball.
  • Part 3: How Fields did on different types of plays (play action, quick vs. slow developing).
  • Part 4: How often Fields was under pressure, and who was to blame.
  • Part 5: How Fields performed under pressure.
  • Part 6: How efficiently Fields produced explosive plays.
  • Part 7: How Fields did against man and zone.
  • Part 8: Fields’ future outlook.

All data comes from Pro Football Focus (PFF) unless otherwise noted, and Fields’ stats are only from week 5 on, as was explained in part one of this series.


Sorting by Depth

The table below shows information splitting the field into four areas, which I will refer to as behind the line, short (0-9 yards), medium (10-19 yards), and deep (20+ yards downfield). Fields’ pass frequency, accuracy, completion percentage, and yards/attempt are shown, as well as how he ranked compared to 33 NFL QBs with at least 240 pass attempts. The best, average, and worst value from around the NFL is given, and any areas where Fields was in the top 25% are highlighted in green, while areas in the bottom 25% are highlighted in red.



[Quick note: I realize the numbers for frequency don’t add up to 100%, but this is PFF’s data, and it’s the same data for everybody, so I’m just rolling with it for a fair comparison. My guess is that they are excluding throwaway passes that didn’t have a clearly defined target, which account for the missing percentage.]

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Fields in Focus (1/8): General Overview and Progress Report

| May 3rd, 2023

Justin Fields has finished his 2nd NFL season, and the Bears have clearly committed to him as their quarterback for at least 2023. With that in mind, let’s take stock of how Fields grew (and didn’t grow) from his rookie season, where his strengths and weaknesses lie, and what he needs to improve to take the next step.

Like I did with Fields in Focus last offseason, this will be an in-depth series exploring several different aspects of Fields’ performance in 2022. The overall breakdown will look like this:

  • Part 1: Comparison to rookie season and growth throughout 2022
  • Part 2: Where and how effectively Fields threw the ball.
  • Part 3: How Fields did on different types of plays (play action, quick vs. slow developing).
  • Part 4: How often Fields was under pressure, and who was to blame.
  • Part 5: How Fields performed under pressure.
  • Part 6: How efficiently Fields produced explosive plays.
  • Part 7: How Fields did against man and zone.
  • Part 8: Fields’ future outlook.

Rookie Comparison

Let’s start today by taking a brief look at Fields’ basic statistics and how they compared to his rookie year. The table below shows how the two seasons stack up, as well as the NFL average for 2022 (calculated by team for any volume stats).

A few thoughts:

  • The first thing that stands out is that Fields threw the ball less often in year two than year one. On the surface, this seems surprising, as usually teams will ask a QB to throw more often as he matures.
    • I was tempted to chalk this up to Fields taking more sacks and scrambling more frequently in 2022, but that hypothesis didn’t pan out. Fields was sacked 3.6 times/game as a rookie and 3.7 times/game in 2022, and Pro Football Focus (PFF) charted Fields with 4.5 scrambles/game in his rookie season compared to 4.7 scrambles/game in year two. Adding in sacks and scrambles, Fields dropped back to pass 35 times/game as a rookie and 29 times/game in year two.
    • The difference, then, comes from the new offensive scheme, which was intentionally more run heavy. In 2021, the Bears ran it on 44% of offensive plays, but that increased to 56% in 2022.
  • Taking more sacks is worrying. Ideally you would like to see that rate go down as Fields gets more familiar with the speed of NFL defenses, as happened throughout the course of his rookie season. We’ll look at sacks and pressure in more detail later in this series, but this is definitely something that needs to improve. An optimist could say this is largely due to the talent the Bears lost on offense after 2021 more than anything Fields did, as Allen Robinson, Jason Peters, and James Daniels all left in free agency and there were essentially no resources invested in replacing them.

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Improved Bears, Tired Broadcast: Reflections on the 2023 NFL Draft

| May 1st, 2023


It wasn’t a particularly interesting draft for the Bears, content-wise. They had lots of picks, and lots of needs. They used those picks to address those needs. Simple as that.

But we’ll start with our club.

  • The Bears clearly have two elements required to be a successful franchise: an identity and a plan. They want to be fast and athletic (who doesn’t?) but they also want to be tough. They drafted a whole bunch of tough guys this weekend. Ryan Poles is not going to be swayed by popular perception. He stands pat, he trusts his evaluations, he makes his picks. It’s refreshing to see.
  • As of now, the offensive line looks to be Braxton Jones – Teven Jenkins – Cody Whitehair – Nate Davis – Darnell Wright. Thoughts on this:
    • While many, including myself, wanted to see the Bears select a center, it is quite understandable that they didn’t see the position as a priority. Offensive lines need SOME veteran leadership and outside of Whitehair, the average age on the rest of this line is 24.
    • The offensive line was poor last year, outside of Jones and Jenkins. Ryan Poles has replaced the other three positions.
    • Lucas Patrick and Larry Borom can now fill their appropriate roles, with the former as swing depth inside and the latter as swing depth outside.
  • The Bears were manhandled in the middle of their defensive line throughout the 2022 season. Look at the size they have added inside:
    • Andrew Billings is 6’1, 311
    • Rasheem Green is 6’4, 279
    • Demarcus Walker is 6’4, 280
    • Gervon Dexter is 6’6, 312
    • Zacch Pickens is 6’4, 300
  • There is no reason to get overexcited about day three selections, but running backs tend to be the exception. And the Bears are wild about Roschon Johnson. Don’t be surprised if they give this kid an opportunity to be their starting running back.
  • Tyler Scott is a speed addition, protection for Velus Jones’ struggles in 2022. Does this mean Velus’ roster spot is tenuous? It might. If Scott shows he can steal those jet sweeps and go routes, while also contributing on specials, Velus could find himself looking for a home this summer.
  • The Bears are improved on both lines, hypothetically. If the hypothesis becomes fact, they’ll be playing meaningful football in December.

As for the rest of the league…

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