Vietnam football has recently welcomed a long-awaited victory, with the championship of the ASEAN Cup breaking the gloom that has plagued the team for two years. This match not only brought long-awaited cheers to Vietnamese fans but also made everyone rethink what "playing style" really means. It must be said that Vietnamese football has been "lost" in recent years. In 2019, the Vietnamese team reached the quarter-finals of the Asian Cup, once giving people hope for the team's future, but it was followed by a sharp decline in the team's form. The FIFA ranking once fell out of the top 100, and the performance was simply unbearable. Worse still, in the matches, the team never had a clear tactical framework, the organization of the defensive line was chaotic, and the offensive end lacked creativity, as if they had lost their way. The root of all this lies in the fact that Vietnamese football has always pursued a "European-style" tactical concept, especially after hiring Philippe Troussier as head coach, the fans placed too much expectation. To put it bluntly, everyone hoped that the Vietnamese team could play like Manchester City, with precise ball control tactics, starting the attack from the backline. However, the reality is that the Vietnamese team's lineup and resources are simply unable to support such high demands. Troussier's arrival did not bring about the anticipated changes; instead, it made the team even more confused in terms of technology and tactics. The players were not adapted to this new "style of play," and the team's resilience gradually diminished. Even…