>>150100937
It's similar. But in the NFL, idk about Rugby, each receiver runs specific routes that are within the overall design of each play. And there are 100s of plays.
Also on defense, there are zone and man defenses which can each have their own special designs. In soccer (football) you basically always have a zone defense where you defend certain areas, but in the NFL there is man to man defense where a defender is following a specific player.
There's tons and tons of layers to this kind of shit. It can get pretty complex.