By the end of the first game on Sunday, David Montgomery scored a goal to give the Bears an early lead. It was clear that Bill Lazor was against the Lions, not Matt. Matt Nagy's microphone against the Browns a week ago. Taking into account the progress* this time, we must assume that Lazor will continue to call for games as the season progresses. This gave us an excellent opportunity to discuss some direct differences between a coach, a week, an opponent and another coach. let's do it.

*No, the Bears opponents in Week 3 and Week 4 are not in the same weight class, but you will be playing against opponents on the schedule, which is what we have to compare with now.

In short: Matt Nagy's game plan for the Browns was a disaster, it started (and almost ended) his personnel decision. The Bears attacked out of 11 personnel, of which 3 wide receivers accounted for 86% of their offensive time. Eleven means one running back and one close end on the court. Najib spent most of the game with five-man protection, and the Browns spent the entire afternoon with Justin Fields. This leads to an average of 0.78 seconds for Fields to get rid of the ball or escape each time it retracements, but this will not win many ball games.

In Week 3, when Najib used 12 people (one running back, two close ends, and two wide receivers), Fields' passing attempt was 2 of 2 shots, albeit a short attempt. The running game also benefited from two rushes, and the second critical game scored 18 yards in two attempts. However, despite the success of the two close ends in blocking, Najib only used the person five times in the loss to the Browns.

In Week 4, Lazor gave Cole Kmet an extra offensive linebacker for pass interceptions and base runs. Cole Kermet played a key role in helping Fields create a clean pocket, he can read and shoot in the low court. For visual effects, you can check this excellent thread on Twitter.

So I watched Cole Kermet's entire first drive for all the slander, and... he was a key blocker most of the time, basically a right tackle. Helping the Spring Mooney drama and the 4 second field had to be thrown (1/2) pic.twitter.com/4ydbECuRne

In the wrong direction, there is also a big difference between running and passing game calls (13-29) because the offensive line is defeated and the rookie quarterback starts for the first time. In comparison, Lazor's last game had 39 runs, while the game against Detroit only had 18 passes. Lazor completed the running game and let other things work as a by-product of the running game.

David Montgomery performed well in this role, scoring two touchdowns and sprinting for 65 yards in 15 passes in the first half, which was a shot by Justin Fields in a vertical game. Some big balls opened the way. This show is a good example of these concepts being flawless:

Justin Fields is a beautiful man who throws beautiful balls. https://t.co/rfmDxBJ56J

-Bleacher Nation Bears (@BN_Bears) October 3, 2021

Sadly, if you miss the news, Montgomery is expected to miss 4-5 weeks due to a sprained knee. 

In addition to the incredible arm strength and accuracy that we are not used to seeing in Chicago, there are some key points because Bill Lazor laid the foundation for the stage with his early game calling. First of all, Cole Kmet lined up as a pseudo right tackle, which is what he did most of the game. Although he does run even on the right sideline if he needs to, as a safety valve for Fields, this is after he chopped up the edge rusher to give Fields time to see Mooney in the low court open. Don't get lost in the shuffle, Mooney split the area coverage with a beautiful two-player move, and Fields has no chance to be safe at the top for this dime.

In addition to providing Fields with a clean pocket with extra protection, Lazor's run-to-play game plan allows the Bears to scratch the Lions when they pass the game. Fields made 5 of 6 shots and passed the ball for 86 yards. I mean, this is "Football 101" unless you have the smartest person in the room and refuse to do these basic things.

More planning concepts in QB Justin Fields' passing game.

Play-action in-breakers (below). Darnell Mooney throws vertically. And CHI runs the ball efficiently.

Field of play against DET: 6 passes, 5 times, 86 yards (14.33 YPA). @NFLMatchup pic.twitter.com/W0xpJe4vzv

— Matt Bowen (@MattBowen41) October 4, 2021

Here, we provide another seven-person protection for Fields. Note that JP Holtz lined up in the backcourt and picked up the linebacker who pretended to bite in Montgomery. On the right side of the video, you will see Cole Kermet getting dirty in the pass blocking game again, this time on the left side of Fields. This gave Fields time to drill Allen Robinson, who was racing in the middle of the field.

Again, this is just football 101, arranged in I-Formation, to provide extra protection for your No. 1 receiver's motion pass when off the court, all by combining running and passing and forcing the Detroit linebacker Downhill to achieve. In the first three weeks of the season, Matt Nagy used two tight formations only 18% of the time.

The difference between Nagy and Lazor is deeper than the eye test. The indicator also supports it. Sharp Football Stats has a cool statistic called success rate or successful match. It adds a layer of background to the traditional statistics of yards per match by evaluating the correlation between match results and specific hitting needs. Therefore, running 10 yards on the 3rd and 26th will increase the average number of running backs by 10 yards/carry. But the result of that game was the 4th and 16th games, so a failed attempt would knock down the first time (and was rated as an unsuccessful game). Sharp Football Stats defines a successful game as: getting at least 40% of the departure yards on the first hit, at least 60% of the departure yards on the second hit, and in the third or third Get 100% off yards in four shots. This makes sense, right?

In the first three weeks of the season, when Nagy passed the ball, they had a 35% success rate on 99 passes. In Week 4, as Lazor built up his passing ability with the support of fast offense, the Bears' passing success rate reached 50%.

"Yes, but it's been a week since Lazor, and it's against the Lions!"

Let's take a look at the success rate of game summoning before and after Nagy handed over the game summoning responsibilities to Matt Nagy last season.

• Success rate of rushing: 40% • Success rate of passing: 44%

• Success rate of rushing: 56% • Success rate of passing: 56%

When Matnaji called, there was no balance. Najib is calling for passes 77% of the time, instead of Lazor calling for passes, and the Bears run the ball 54.1% of the time.

This is the main difference between us in the game, this is the most basic principle of the success of modern football: explosive force. An explosive game is defined as a run of 15 yards or more and a pass of 20 yards or more. With Andy Dalton at the center, the Bears had two explosive games in 11 kick-offs. This is an explosive play for every 5.5 drives. Because Justin Fields is in the center position, even including the disaster against Cleveland last week, the Bears have explosive games in 24 kicks or 9 out of every 2.7 kicks.

The explosive game resulted in scoring. This is just a fact. If you can't play explosive matches, you have to survive and die on the scoring drive of 8-10 (or more) matches, and almost everything must be done correctly. If you are a fan of Bears, this should sound familiar, because this is the script of our life. so far. Now you have a quarterback with extraordinary athleticism, arm strength and accuracy, and let things happen in the low court, so why don't you use him. Or, more importantly, why don't you plan to use it as much as possible.

Matt Nagy and Bill Razor's differences in personnel, planning and play styles are obvious, and so are the results.

The differences between Andy Dalton and Justin Fields in talents, abilities, and results are obvious, and so are the results.

The decision to stick to the positions of Lazor and Fields on Sunday is obvious, and frankly, it would be Matt Nagy's misconduct to deviate from this setting.

Patrick is a full-time writer for Bleacher Nation. You can follow him on Twitter @PatrickKFlowers.

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