The unpredictability of results of sporting competitions accounts for a large part of the fascination of sport. Why does U.K. have the strongest soccer league in the world, but has never been world champion since 1966? In recent decades, for example, young football players from developing countries in Africa have become important, they run faster than their colleagues in Europe, and they are accepted everywhere, in countries they can choose, even as citizens. Belgium, France, also Germany and Switzerland benefit to a certain extent from this. But traditions also play a role. The USA hardly have a chance to become world champions, Soccer is not as popular as other sports. So, many factors come together, and we don't know whether the juxtaposition of "old" and "young" footballing nations makes sense and is correct at all.
The old teams stop growing and full of confidence while the young teams learn and improve everyday. The introduction of VAR also helps to minimize the deceit of big teams.
The old teams need to update the plans, the methods of preparing / training / the individual skills / the disappearance of the spirit of the team, deception of lights and the world fame, the uneven fitness required, some matches succeeded only by the goalkeeper to repel the attacks and hard balls, the ball remains circular and surprises continue,they must have different ages, mixing with teams from different countries of the world
Lack of preparation and foresight as well as underestimation of the potential of their competitors were the principal causes of their failure. Life is all about focus, hard work to win and to succeed. This lesson is what many of these old schools of football forgot.