Bayern Munich is currently implementing a defense that makes them prefer to draw and not score more because maybe they are hiding a new strategy against Barcelona in the upcoming match because usually the coach will look at several formations in the previous game to look for weak points from the defense opponent.
I don't believe what you said, how can a team draw 3 consecutive matches all in the name of hiding a strategy. What kind of strategy are they hiding. Bayern Munich already had one of the best strategies, which is to score so many goals in a match. No matter how bad your defence is, when your attack is able to score 4 to 8 goals in a match, you would be assured that you will win the match.
What is happening to Bayern is something we should be worried about, it is not a delibrate act, it is a problem that needs to be solved and it is unfortunate that they have not solved it yet and they are about to meet Barcelona that looks strong with their former talisman - Lewandowski
The problem is see now if they can score that many goals in one game over the last few games?
Regardless of what their performance is clearly different in the Bundesliga and the Champions League now and when the draw for the third time is an example that the results of the defense still cannot coordinate well because if you look at that time Stutgart only made 3 shots on target and 2 of them were goals. .