In a documentary on Bayern TV, Mueller recalled his different feelings during his time coaching Bayern at Kovac, Ancelotti and Guardiola respectively.

Muller believes that he has spent a difficult time when Kovac coached Bayern

Muller: "In Kovac coached Bayern in the second year, when Coutinho just joined Bayern, I remember that I didn't enter the starting lineup in seven consecutive games. Logically, at that time, even the team's substitute should have a chance to start, because it is reasonable to rotate properly. I hoped to make a change at the time. Because if I can't change the situation here, I have to change myself (referring to leaving Bayern, but later Mueller stayed at Bayern for various reasons). "

Muller believes that his situation when Ancelotti coached Bayern Not good either

Muller: "I feel that Ancelotti seems to think I can play right winger too. To some extent, I can do it, but the premise is that my teammates around me can cooperate well with me. But under Ancelotti, our tactical system often causes the winger to fight isolated, so my advantages cannot be played, and my shortcomings may be exposed. "

Muller missed the ultimate pursuit of details when Guardiola coached Bayern very much

Muller: "(After Guardiola left Bayern), our team no longer has that kind of detailed organization on the court, and there are no more 'chess-style' tactical arrangements, and I have always adapted to that style."