Kim Sang-sik and the Race Against Time: Vietnam's Squad-Depth Puzzle Before the Asian Cup

At 6:12 p.m. at the Longquanyi training ground, the floodlights were already on but the players had not yet left the center circle. I stood at the touchline, where I have stood for many seasons, and noted a small detail: after the final whistle of the session, four young players ran two extra laps, while the veteran group walked straight into the dressing room. Footsteps on grass do not lie, as long as you stand at the touchline long enough. And those footsteps are telling a story the scoreboard does not show: a national team racing the clock while its own body pushes back.

For weeks now, that story has had a specific name: Kim Sang-sik. The South Korean head coach is facing a November window that is now measured in weeks, after an ASEAN Cup that raised more questions than it answered. Regional media call it a "sprint." I call it something else: a squad-depth problem compressed by the calendar.

The context starts with the very stage on which Vietnam is considered a leading candidate. The ASEAN Cup is a biennial, year-end tournament organized by the ASEAN Football Federation (AFF) — not a FIFA competition, despite a naming convention that sometimes causes confusion. Not long ago, Vietnam won this tournament twice, in 2026 and 2026, and that status turned every ASEAN Cup into an almost default expectation: a deep run, at minimum a final. When results fall short, the gap between expectation and reality immediately becomes pressure on the coaching staff.

What caught my attention was not the failure itself, but the way it unfolded. Throughout the tournament, Kim Sang-sik constantly experimented with personnel, rotated his squad, and handed chances to players who had never started. The idea was right: a team wanting to step onto the continental stage needs more options than eleven familiar names. But the experiments did not convert into results. The backup options were not yet at the required level, or were never given a stable structure in which to succeed. Both readings lead to the same point: the team is in a transition phase, not yet gelled.

This is the core issue. Vietnam does not lack a new tactical system; the team lacks squad depth, and that is a ceiling problem, not a design problem. When a team leans too heavily on a small core of veterans, any swing in their form or fitness drags the whole machine down. I have seen this repeat across tournaments: whenever the core players lose form or are absent through injury, the team immediately loses its rhythm of control, the midfield thins out, and long balls replacing short combinations become the default option.

It is important to distinguish two tiers of competition. At regional level, Vietnam belongs to the leading group. At continental level, the team sits in the second tier — the group fighting for a knockout-round place at the Asian Cup, not yet the group of title contenders. The step from ASEAN to Asian Cup raises the physical and technical bar sharply. That is why the demand for fresh faces and greater depth is not a slogan but a condition for survival.

To be fair, the pressure on Kim Sang-sik comes from two directions beyond his control. The first is injuries: a thin squad plus a congested club calendar erodes players' recovery time. V.League clubs absorb the minutes and the injury exposure, while the national team inherits the consequences. It is a quiet form of cost-shifting. The second is time: with the November window measured in weeks, no coach can both experiment and guarantee results.

Here I want to say plainly something public opinion often overlooks. The "race against time" narrative is more self-narration than data. No process metrics — no xG, no pressing counts, no possession share — have been presented to prove that the recent ASEAN Cup was unfair or deserved. Without process data, people easily fall into two extremes: blaming circumstances, or rushing to judge a player from a single match. Three times I mispronounced Xhaka's name, and that taught me to read people before writing. I keep that principle: you need three sources, three vantage points, three matches before making any judgment.

The second blind spot lies in how the generational question is read. The demand to bring new blood into the squad puts the coaching staff in a dilemma: blooding young players too early risks short-term results, while keeping the veteran core risks stagnation. No option is free. And because this problem is structural, any accusation about a specific faction in the dressing room has no basis.

Another possibility deserves a seat at the table: if depth is built through naturalization or overseas-Vietnamese players, the story is no longer purely sporting. Registration conditions and the timing of eligibility confirmation under FIFA and AFC rules become decisive operational factors. This is a lever the media rarely mentions, but it could change the coach's options right before the tournament.

Taken as a whole, Vietnam's risk right now concentrates in a single cluster: availability. Injuries, dependence on a veteran core, and a congested calendar reinforce each other into a depth crisis precisely when depth is most needed. This is not the story of a wrong system, but of a squad not yet deep enough to withstand the pressure of the continental stage.

An empty stadium, full hearts — that year I understood why I sit here. I still sit at the touchline, noting the footsteps of the young players running two extra laps after the lights come on. The November window will most likely be treated by the coaching staff as a mid-term checkpoint rather than a final verdict: a convincing performance buys patience, a poor result reignites the debate about generations and about time. The question I carry home from the training ground is not whether Kim Sang-sik survives, but whether Vietnam can build enough depth before the clock strikes the hour it cannot afford to miss.