I don't know why Bayern Munich management insists that they will part away with Tuchel at the end of the season, even after several coaches have rejected their offer. I don't think Tuchel was responsible for Bayern Munich's bad performance this season. However, Bayern Munich's performance this season has been amazing, but there is no consistency in their games. Many people think that Tuchel was responsible for the issues going on with Bayern Munich this season. But with Tuchel Bayern Munich reaching the Champions League semifinal, even in the Bundesliga league, they are still in the second position.
In my opinion, Tuchel needs more seasons to get used to the club since there's a lot of pressure on him this season. Though the Bundesliga is not a tough league, even though Bayern Munich appoints a new head coach next season, I don't think it will be easy to get used to the club. Let's see what will happen after the season ends because I don't think the management will change their decision for Tuchel to remain in the league.
Bayern Munich deteriorating performance in the league is certainly the reason Bayern Munich wants to sack Tuchel at the end of the season, failed to win the Bundesliga, DFB pokal, Champions League and lost dominance in the Bundesliga certainly made Bayern Munich management disappointed with Tuchel performance so far and that forced the management to take action to fire Tuchel at the end of the season, but now it seems that conditions have been different and reversed because indeed Bayern Munich has The intention to keep Tuchel next season after they failed to get another coach, yes now it is Munich who have quite a lot of pressure after they failed to get Alonso, Nagelsman, Rangnick and also Unai Emery.
Reportedly Bayern Munich has asked Tuchel to stay at the Allianz Arena, but Tuchel is reluctant to continue coaching Munich next season if the club does not have an absolute vote from the management board to ask Tuchel to stay, besides that reportedly Tuchel also proposed conditions that are difficult to meet by Munich, namely recruiting Bruno Fernandes from Manchester United, currently Bruno Fernandes is a mainstay player of Manchester United and even he is irreplaceable in the Red Devils squad so that It seems impossible for Manchester United to sell Bruno Fernandes next season.