Tuchel will start the next season with Bayern Munich whatever the results are, that was said few weeks ago. His future with the club will be determined in the first month in case of defeats, otherwise he will continue like Nagelsmann and be evaluated later.
Training a team like Bayern Munich isn't an easy job. It is a nightmare in my opinion since the team should remain first in Bundesliga and compete in the finals of Champions League. It would be preferable for them to win DFB-Pokal and whatever match they face. Their requirements are high and objectives are higher.