Schuster, preparing for tonight's big derby against Atletico Madrid, said: "I am happy with the group that we have right now, although you always want to improve on what you have. An important amount of money has been spent and we cannot get ahead of ourselves by demanding more.
"If they bring me one more, then perfect, as I said to the president, who responded to me that I will never be happy - like all Germans!"
On Atletico's favouritism tonight, Schuster responded sarcastically: "They say the away team, Atletico, are favourites. I shouldn't be surprised, the way people are talking it wouldn't matter who we were playing, we'd be tipped to lose."