Tuchel was Nagelsmann's senior in the previous Coaching chair and Nagelsmann got a lot of knowledge regarding how to manage the team and strategy from Tuchel. But oddly enough his arrival to Bayern Munich has left the squad in disarray compared to when Nagelsmann was main coach and I see Tuchel unable to integrate the players they have. So that the quality of the players owned by Bayern Munich is not effective and cannot play in a more coordinated manner under Tuchel's coaching.
It's true that as you said, Tuchel is more senior than Nagelsmann in the coaching chair. But the timing of sacking Nagelsmann and replacing Tuchel was not quite right because changing coaches when the team was good was also wrong. Last season's failure in the Champions League was clearly the fault of coach Nagelsmann who was overthinking and this season's failure was due to his own management. When coach Nagelsmann, who was conducive and had learned from last season's failures, suddenly sacked and replaced Tuchel.
Even though if you look at the quality of the players owned by Bayern Munich, it shouldn't be too difficult for Tuchel to concoct a strategy so that the squad plays more cohesively and solidly. The fact is he failed to bring Bayern Munich to win the Bundesliga this season and in my opinion he is not suitable to be Bayern Munich's main coach.
Since Tuchel's arrival, many have changed the pattern of Munich's game, for example in the era of coaches Flick and Nagelsmann the flow of the ball from behind was quickly directed forward, while in the Tuchel era the ball played a lot in its own area from the goalkeeper to De light, to UpamecanO and to the goalkeeper again. slow in attack and Yan Sommer is still far below Neuer's level, Sommer cannot build up attacks from his own defense, his shot accuracy is also still far away and often wrong. After losing two titles this season, I'm sure Munich this season will lose the Bundesliga title and zero titles this season.