Let me deal with the obvious objection first. This was not a cupset, because neither side was an underdog. Công An Hà Nội are the reigning Vietnamese champions and played in AFC Champions League Two last season. Adelaide finished second in the A-League, four points off the Premiers Plate, unbeaten across their last ten matches of the regular season and widely tipped as the smokey to take the thing outright. Two sides who came close to winning their own leagues met in a play-off, and one of them won.
The reason it belongs in this series is different, and it is the reason I am writing this at all. In Part Three I argued that Adelaide’s attacking reputation rested on finishing overperformance rather than genuine chance quality, and that a side willing to compress the middle would find them short of answers. Twelve days later, against opposition from another country in another competition, it happened again in almost exactly the same shape.
The 39th minute: the same answer to the same question
Adelaide arrived at the edge of a compressed box and reached for the whipped cross. This is the move that has now failed in front of two different opponents, and against CAHN it failed again.
Watch the preparation rather than the delivery. CAHN had a player on the deliverer and a player on the intended recipient, and the goalkeeper had already set his position to take anything that survived both. That is not a defence reacting, it is a defence being proactive against the one trick Adelaide have up their sleeve when route one football does not work.
Readers of Part Two will recognise the shape. Ryan Scott read Newcastle’s pull-back because he had spent years watching it from the other end. The mechanism here is the same and the timeline is shorter, and I will come back to that at the end.
Adelaide had one idea for how to break a compressed box, and their opponent had prepared for it specifically.
The 41st minute: the goal Adelaide are supposed to score, scored by CAHN
David Henen’s opener was close to a carbon copy of the goal Adelaide scored against South Melbourne. Find space between the lines, wait rather than rush, take the through ball and hit it at pace.
Two goals resembling each other is not in itself an argument. That goal is what Adelaide’s attack is supposed to produce. It requires a player who can occupy the gap between midfield and defence, hold the position while the pass develops, and finish at speed. CAHN produced it inside forty-one minutes. Adelaide, across two matches against sides that compressed them, produced it once and then never found it again.
The problem isn’t that Adelaide do not know what a good goal looks like. It is that they can only build one when the space is offered to them.
The 64th minute: two minutes of abandoned principles
The build-up to CAHN’s second runs close to two minutes, and Adelaide walk away from their own principles three separate times. First they sit off entirely, allowing CAHN to work the ball back to the goalkeeper, who attempts to bypass a press that never arrives. CAHN lose it and win it straight back, and it returns to the goalkeeper again with nobody closing. Then an Adelaide clearance drops near an Adelaide player, who takes a step towards it and is beaten to it by a CAHN defender, and again there is no pressure on the return. Then Adelaide try to build from the back, the goalkeeper finds the winger, the winger puts it out of play, and CAHN intercept.
The detail worth pausing on is what the CAHN players do with their bodies just before that interception. Several of them begin their forward movement before the ball is won. There are two readings available. The generous one is that Adelaide’s build pattern is legible enough that an alert opponent can anticipate it, which is damaging on its own. The less generous one is that CAHN had specific preparation for exactly this sequence.
Then CAHN do what Adelaide tried to do in the 39th minute. CAHN reach the same area of the pitch, and instead of whipping the ball in they pass it flat into the middle. Adelaide’s defenders track the forward runner and do not see the supporting player behind him. He takes the ball and puts it into the bottom corner.
Two sides faced the same problem in the same match. One had a single solution and delivered it into three waiting defenders. The other looked at the same picture and chose the pass.
What it means
Airton Andrioli said before kick-off that Adelaide had done their homework on the opposition. Afterwards he was frustrated at how easily CAHN played through his side for both goals, with a couple of simple passes doing the damage each time. Both statements are true and the gap between them is the story.
In Part Three I left the verdict open between a recruitment gap and a coaching decision. I am closing it now, and the answer leans towards recruitment. Twelve days is not long enough to rebuild how a side attacks, and it is fair to say Andrioli had almost no window in which to install a second idea.
A team that can be neutralised by one opponent and then neutralised the same way twelve days later, by a side from another country, does not have a problem a fortnight of training was ever going to solve. It has a squad built around a single method.
Adelaide need a player who creates space rather than one who waits to exploit it, and they need a second way of attacking a compressed box that does not depend on a cross surviving three defenders.
There is one more thing, and it is the reason this match may matter more than the scoreline suggests. Stefan Mauk started in the CAHN midfield. He made 107 appearances for Adelaide across three spells and captained several of the players he lined up against. He did not need to study the South Melbourne tape to know what Adelaide would do, because he had trained inside those patterns until last year.
That is the uncomfortable version of everything this series has been arguing. A team with one idea does not only lose to the opponent who works it out. It loses to everyone the answer reaches.
Footage courtesy of the Asian Football Confederation. Clips are reproduced for the purpose of criticism and review under the fair dealing provisions of the Copyright Act 1968 (Cth). All rights in the match footage remain with the AFC.