"I don't know why we are making so many mistakes,'' he said. "If I did we wouldn't be making them. It's probably due to a mixture of things; the late return of players from Euro 2004, injuries and Rio's ban. When you are missing so many players, it is not easy to get ready for a new season. At the moment all we can do is try get everyone back as quickly as possible and stop making mistakes, because there have been far too many so far."