The Frenchman told the club's official website: "It is not mission impossible.
"It can be done, but first of all you need 100 per cent commitment, attitude and things to go your way. But usually football goes your way when you have the right attitude.
"There is a kind of feeling of 'let's really play with freedom'. Let's start strong. We have to create doubt in their mind and you only do that if you have a real go.
"The chance you have is to make insecure the certainty Bayern have at the moment. That you can only do if you perform at your best.
"We can have a real go without being silly. We can't think that the game lasts 30 minutes and throw everything forward from the first minute on. We want to be positive but also intelligent."