The nfl's ball-catching and running route is complicated and comparable to a chess game.

First of all, you must distinguish between the number of gears, first gear, second gear, third gear, or force four gears; short code count or long code count, or if you face excessive long code count after a foul?

Secondly, we must distinguish the players' playing style, whether we are good at finding gaps in dense areas or leaving defensive players to create gaps; whether we are good at face-to-face close-fitting or forming advantages at absolute speed; whether we are good at creating opportunities by ourselves or relying on teammates to dismantle them; whether we are good at positional warfare or sports warfare?

And so on.

It is also thanks to such a rich and diverse catch-and-running route that players of different types and styles can find their own place in the professional league. The most important thing is how the head coach uses tactical layout to tap the team's offensive firepower, which is also one of the charms of rugby.

However, in ncaa, the tactics are relatively less complicated.

ncaa's offensive tactics also have its own tactical system and characteristics, but overall, it relies more on player talent, and the tactical system is likely to shift its focus because of a talented player.

For example, if a college team discovers a running back with great talent, the team's tactics may be fully built around this running back, completely ignoring the overall trend of the NFL professional league now, and it is even less likely to build the team around the head coach's tactical system and core quarterback like professional teams.

Of course, this is just "relatively", but not "absolute".

The most typical example is "no business gathering to attack".

Rugby is a turn-based sport. Before each offense and defense begins, both sides have 40 seconds of tactical arrangement and adjustment time. The initiative is on the side of the offensive team. The quarterbacks gather their teammates to convey coaching tactics, which is called "clustering"; and "clustering without clustering" is an offensive method that skips the clustering process.

Because the business gathering process is omitted, this means that the coaching staff's tactics cannot be conveyed to the players, and the command power falls on the shoulders of the quarterbacks; and the quarterbacks and teammates have no time to communicate, and rely entirely on their daily tacit understanding and the players' own abilities to complete the offense.

Simply put, it is adaptability.

In a professional football field with high intensity and high IQ, this is considered a "very risky" move. Because the lack of tactical layout means that the offensive team gives up their initiative. The defensive team, who is already in a random position, can smell the crisis in advance and kill the offense.

Initially, "no gathering and attacking" emerged in the NCAA field - simplifying tactics, relying on talent, believing in intuition, which brought the talent attributes of the university field to the extreme; but this tactic was considered to be unworkable in NFL, "because the defense team can easily suppress the opponent."

Part of the reason is control.

"No business to attack" means that the coaching staff must hand over the on-site command to the quarterback, which may not only undermine the power of the coaching staff; but at the same time, once there is a problem in the game, the blame will be borne by the coach, not the quarterback - no one wants to hand over the initiative of their destiny.

However, from 2013 to 2015, Oregon head coach Chip-kelly went to the Philadelphia Hawks in NFL as head coach. He boldly brought the "No Club Offense" to the professional arena and achieved incredible success, leading the team into the playoffs for two consecutive seasons, and also allowed the unknown quarterback Nik C.Foles to shine and shine in the entire league.

Chip Kelly's success forced the league coaching staff to start facing the "no-gathering offense". Then, they realized that if the quarterback's defensive reading is accurate enough, the battle situation is clear enough, and the passes are decisive enough, then the "no-gathering offense" can speed up the offensive rhythm as much as possible, and incorporate the entire game situation into the most familiar and good-for-all mode of the offensive team, and defeat the defensive team in one fell swoop.

Later, the use of "no-cluster offense" became more and more common in NFL, and it further enhanced the status of quarterbacks - those who were familiar with using no-cluster offense to complete a fatal blow were all top quarterbacks, which also meant that the tactical position of quarterbacks became increasingly prominent.

However, such offensive tactics rely too much on player abilities, especially quarterback abilities. When the changes are seen through, the professional league's defensive strength is as expected before, gradually gaining the upper hand and being able to control the situation easily - after all, top quarterbacks are hard to come by, and Chip Kelly's magical aura is broken.

After leaving the Philadelphia Hawks, Chip went to San Francisco for another year to serve as head coach. His poor record of two wins and fourteen losses made him lose his job directly. After being unemployed for a year at home, he returned to the NCAA field and served as head coach of the UCLA.

According to the historical development trajectory, "no business attack" has appeared in the NCAA field now, but a clear tactical concept has not yet been formed. It was not until 2009 and around 2010 that the entire tactical system was completely formed, and then it spread from NCAA to NFL.

Now, Lu Yiqi is preparing to establish a "no business-gathering offensive" system at Kansas State University.

Like the defensive team, Lu Yiqi must inject more vitality into the team's tactics in a short period of time, but also avoid drastic changes in the tactical framework as much as possible, causing the players to lose themselves in a confused manner. After careful consideration, he believes that this is the most suitable offensive tactical choice for the Wildcats at this stage.

What's more, as mentioned above, even if the same "business attack is not gathered", there is still a difference between nfl and ncaa.

On the college field, the entire tactical system is much simpler. The game style and personal abilities of the wide receiver and the tight end are not divided in detail. Most of the time, during the training process, the offensive team coaches formulate running routes and routines, and then let the players practice over and over again to truly form an instinct and imprint them in the body; when they are put into formal competitions, no matter who they are, the players only need to run according to the routine and fully exert their personal abilities.

With limited time, limited player abilities and limited tactical changes frameworks, Lu Yiqi believes that this is the best option to achieve immediate results in a short period of time.

But ideals are beautiful, reality is skinny, and the understanding ability and execution effect of Wildcats players are still significantly different from the picture Lu Yiqi expects.

"Banks, when cutting in the right side, you need to pay attention to your teammates and teammates! If you rush forward in a straight line, you will get stuck on the opponent's route. Isn't that a car crash?"

"Murphy! Murphy! Stop! This is the third time. When the quarterback chooses to run a fake run and pass, you need to be the first to cut in and cut in and cut in and cut in! Do you understand? Cut in and cut in and make judgments and choices based on the conditions around you, but without cut in, you cannot cover your teammates!"

"Stop! Stop! Stop! Then who! Quarles! Yes, Quarles, recall, what is route 33? Yes, forward rush back run horizontally, then, what about your run back? Run back? Run back stop and pull horizontally, this is route 32! Now I need to run back, you must run back, otherwise the quarterback's pass will not be able to find you. Because he doesn't have time to observe slowly, and then make adjustments! Run back, do you understand?"

"No, no no no no no, Nelson, rush forward! Rush forward! You must sprint your footsteps, don't stop! After rushing for fifteen yards, control your footsteps and observe the defense, do you understand? Within the first fifteen yards, completely burst out the speed and overtake the defensive player with absolute speed."
Chapter completed!