Vietnam Football: How Incheon's 'Raw Gems' Teach Us to Read the Future

From the training grounds of Incheon, a raw gem rolls along the trajectory of a destined pass. This is not an image of a national stadium star, but a moment where I observed a 19-year-old player, Lee Jae-won, whose long jump run-up technique was almost entirely contrary to standard teaching, yet generated unusual explosive force at the final angle. The lesson from this does not lie in the ranking tables, but in how we perceive the hidden potential in non-conformist movements. For Vietnamese football, especially when looking at the U23 team and youth academies, we are missing countless such "raw gems" because of our obsession with superficial metrics. The current context of Vietnamese football stands at a crossroads. On one side is the pressure of immediate results in regional and continental tournaments, where each match is measured by the scoreline. On the other is the long-term need to build a systematic training structure, where individual development is prioritized over short-term outcomes. I witnessed this disparity most clearly when comparing how the South Korean and Vietnamese youth teams prepare for major tournaments. While Vietnamese coaches are often swept away by safe tactics to protect their records, my Korean colleagues, who have worked with training academies in Incheon, focus on anatomizing the technical and psychological "wounds" of players from an early stage. When data becomes the star, football begins to be told in a different language. Look at the "central conflict rate," a metric few know but which is crucial for measuring the ability to control space between two lines of midfielders. Data from recent Asian youth tournaments shows that Vietnamese players often tend to move in straight lines to optimize distance, while Korean young midfielders accept running 15% more total distance but with complex curved paths to create space. This difference does not lie in fitness, but in tactical thinking nurtured in small training grounds, where spatial limits force creativity. People often say that fitness is the problem for Vietnamese football, but in reality, it is a problem of lacking spatial awareness drills in grassroots training. A stadium is so silent that I can hear the breathing of the match itself. It is the sound of loneliness when a young midfielder faces the defensive pressure of the opponent without support from teammates. I have interviewed many young players at recruitment camps, and what scares them most is not losing the match, but being "forgotten" after a lack of decisiveness in a play. This pressure is amplified by the media and public expectations, which often demand a beautiful and effective playing style immediately. However, as I observed in Olympic tournaments, the most successful players are often those who dare to accept mistakes in the process of development, rather than avoiding risks to ensure safety. Rushing a player into the starting lineup without enough tactical "hardening" is like forcing a raw gem into a ring that does not fit; the result is only shattering. The counter-intuitive angle here is: We do not lack talent; we lack a "common language" between grassroots coaches and tactical analysts. In South Korea, young coaches are trained not only in tactics but also in reading data to adjust training. They understand that every lost ball is not a mistake, but data to analyze gaps in the defensive system. In Vietnam, we still rely too much on the coach's "senses," rather than using data as a compass. This leads to young players being trained in a "individualistic" manner, lacking team connection in dynamic situations. A midfielder may run very well, but if he does not know how to use the empty space created by teammates, his value in the modern tactical system is very low. The truth is that investing in data analysis technology for youth football in Vietnam is still very rudimentary. While major K-League clubs use motion tracking software to analyze every step of a player's run, in Vietnam, match recording still relies mainly on the naked eye and notebooks. This shortage not only affects talent selection but also slows the adaptation process of players when stepping onto the international stage. When facing teams with a solid data foundation, we are easily overpowered by the precision in exploiting space. However, precisely from these limitations, we have the opportunity to build a new system where data and intuition are combined harmoniously, rather than opposed. People say raw gems must be polished, but I believe they shine from within the mud. The story of Lee Jae-won, or any other young player, is not just about skill, but about the ability to adapt and create within harsh limits. Based on my experience watching matches, I realize that the players with the best ability to "read" the game are often those who have experienced diverse competitive environments, where they had to solve problems independently without constant coaching instructions. This is the biggest gap in our current training system: over-reliance on direct guidance, rather than encouraging autonomy in tactical thinking. To change this, we need a shift in management thinking. Instead of focusing only on the results of youth tournaments, governing bodies need to invest in building a common database on player development, from ages 12 to 18. This data will not only serve selection but also form the basis for coaches to adjust training methods to suit the physiological and psychological characteristics of each age group. Moreover, we need to encourage cooperation between grassroots coaches and data analysts to create a continuous feedback loop, helping to improve training quality in real-time. Sport, ultimately, is a common language. But to understand it, we need to learn how to listen to the stories behind the numbers. A successful run into space is not just the result of fitness, but of making the right tactical choice in a millisecond. And that choice can only be forged through freedom of thought and proper support from the system. If we continue to view youth football merely as a stepping stone for immediate results, we will forever be observers, never creators. The question is not who will be the next star, but which system will nurture those stars most sustainably.