According to Bielsa, in the past few years, the tactical evolution of professional football in Europe has been centered on two aspects to improve, one is running ability, and the other is offensive and defensive conversion efficiency.


    A player, in a football game, most of the time is running without the ball.


    Therefore, the improvement of running ability can greatly enrich the team''s tactical methods.


    During Guardiola''s peak years in Barcelona, ??the players'' running ability was quite amazing.


    And to match with it, under the amazing running, Barcelona''s frontcourt pressure and on-the-spot counter-robbing also did a good job, and the offensive and defensive conversion efficiency was extremely high. Therefore, during that period, Barcelona was almost invincible and invincible.


    But everyone knows that this kind of big picture