The Arsenal manager admit that some game scenarios don't suit the German, meaning he requires a structure from his team-mates.
"I am very pleased with him. I played with him and I know him, so I try to pinch him as much as I can to do what he needs to do, because I know how much he can give on the offensive side.
"Today is a good example; when we are dominant, when the process is properly done, it is the type of game he wants."
"When it becomes like this, it is not his game. So he needs his team-mates, he needs the right structure and organisation for him to flourish. Sometimes it is not his fault, it is about the team not supporting what he needs."