On what makes a great manager:
First of all, he should have a clear idea of how to play football. A game plan/idea. Secondly, he must be able to manage the different characters in a team, so that they could implement his idea of football but also maintain a good atmosphere in the team. And thirdly - he must have success.
If I had to decide between a game plan/idea and motivation - I'd drop the latter.
A world class manager must be able to read the game in such a way, that allows him and his team to react to different situations throughout the match.
On Heynckes:
My most important coach. Many had seen that I was talented. However, he was the first one to have the courage to give me regular playing time and to forgive me one or two bad games.
On LVG:
When it comes to the game plan / idea, he's an absolutely top coach. Whether this philosophy has always suited the team, I'd leave that open. But he has a concrete concept, vision and he definitely sticks by it.
On Löw:
For him, as a national coach, applies the same as it did for Heynckes, as a club coach: I always knew where I stood in his eyes (I knew what his opinion of me was). This is not the only reason why I appreciate him so much - he is also unbelievably knowledgeable when it comes to football.
On Pep:
When it comes to playing ideas, game plan, playing solutions and how to play against and beat a specific opponent - Pep was the best coach that I had.
On Ancelotti:
He could best mix the requirements for success - the tactical idea and the human relations - something that is not so simple in Real Madrid. When he left, everyone was sad. Even those who hadn't played much and had a reason to criticize him. I can't think of anything negative to say about him. This is remarkable.