Everton managed a comprehensive 3-1 win over MK on Tuesday through goals from Gerard Deulofeu, Ross Barkley and Muhamed Besic, and it has to be said that the Toffees looked very impressive on the night.
Despite the convincing nature of the win though, manager Koeman was not left entirely happy and has urged his players to improve in the coming matches.
The Dutchman said following the game: "In the first half we had some problems to keep the team compact, to do the right pressing at the right moment. That was not good in the first half.
"What you like to see is changing of the ball possession. You like to play short but, if not, put the balls in the channels. Out of that we scored twice.
"But the total performance, in my opinion, we have to improve. The team, the players, we need to press better. The pitch in some stages of the game was too long. If you press up front, it means the midfielders they need to push up as well and it's the same for the defenders.
"If one is pressing and the player behind is not following, you get problems. On that we need to improve."