There were, as so often, elements of the absurd in Louis van Gaal’s press conference. Like the moment he raised his arms and his voice to mimic what the Old Trafford supporters sing about him, by way of demonstrating that they, like the players are “satisfied” with his ways, as he put it. “The fans are shouting each week ‘Louis van Gaal’s army, ‘Louis van Gaal’s army,’” he chanted. It was a startling moment because it came from nowhere.