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Data Entry: Self-Scouting Chicago’s 2017 – Defense

| February 6th, 2018

Chicago’s defense was generally good in 2017. We all know this. They finished 10th in total yards allowed and 9th in points allowed.

Let’s take the same approach we took with the offense.

Rushing Defense

Chicago’s overall run defense was solid in 2017; they finished 11th in rushing yards against, 12th in yards per carry allowed, and 9th in touchdowns given up. Now let’s break it down by different areas of the field.

Here’s the data for Chicago’s rushing defense in 2017. The line at the bottom is the line of scrimmage, runs are split into 7 zones, and attempts and yards per carry are listed for each zone, with ranks relative to the rest of the NFL in parentheses. The height of the bar is proportional to yards per carry, and bars are colored green for top 10, red for bottom 10, and yellow for middle 12. Note expected yards per carry varies by region, so the colors are relative to their peers in that region.



A few thoughts:

  • There were some clear changes here from what this looked like at the bye, when the Bears were halfway through the season. That makes sense given all of the injuries that forced different personnel to play down the stretch. A few noticeable shifts include runs to left end and the middle, which I’ll expand more on individually.
  • At left end, the Bears improved a good bit in the 2nd half of the season. Halfway through, they were giving up 5.4 yards per carry there, and their work in the 2nd half dropped by a full yard per carry. Some of that might be due to a small sample size (only 18 runs in the first half), while others might be due to personnel. Cornerback Prince Amukamara largely played on that side, but he missed a large part of the first half. Outside linebacker Pernell McPhee also played less there down the stretch, and replacing his lack of speed with somebody else might have helped.

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