He told reporters on Friday: "It goes without saying that I have to take responsibility now. We have spoken a lot in the last 48 hours and some harsh words have been spoken. That is of course necessary, because some things have certainly happened. I feel like it helped, but it's really time to show that. It makes perfect sense. I'm going to work on that too. I blame myself too. I'm not crazy, I know when things need to be improved. That's what I'm working on. That is the basis for getting better. The last match was definitely not my best, but personally that has not happened often this season. It is important to me that it stops now. That is the responsibility I take now. That responsibility is very great, especially at Oranje. And the criticism affects me."