On Wednesday, Louis van Gaal's Netherlands will face Argentina in the semi-final of the World Cup in Brazil.
It's a match most fans and analysts never expected.
Ahead of the tournament, the Netherlands squad was generally considered to be too inexperienced—and perhaps lacking in quality—to get very far.
In no small measure, the Netherlands' success can be attributed to Van Gaal, who seems unable to make a wrong decision.
The Dutchman is constantly steering his team in the right direction, tactically as well as mentally.
Here, we take a look at Van Gaal's three most influential World Cup decisions for the Netherlands.