I see the boy Mirallas had nice words to say about him in everyone's favourite newspaper:
Mirallas said he was mightily impressed by the decisive thinking from Koeman that rescued Everton from their poor opening against the Baggies.
"It was a difficult start," said the forward. "We played the same tactics as last week but the coach has seen directly it wasn't good and changed. After that we payed well, got in good positions and made chances to score.
"He's good because he saw directly the team had problems and changed it. He had the solution to win the game.
"When you're a player you see that and you're happy because he had the solution to win the game.
"We didn't panic."