Nagelsmann doesn’t need to worry too much yet. Bayern will probably still win the league despite their bad form. There’s only really Dortmund as a proper competitor & they have lots of young players who could choke as the season goes on. Bayern know how to win the big trophies, they have a lot of players with bog experience.
Oliver Khan still believes in Nagelsmann so the sacking won't happen and gives him the opportunity that he can do to analyze why this could happen in the Bundesliga while in the Champions League it's performing better, I know this will be a lot of concern from all sides but the young coach Nagelsmann able to do it and it has been bad in the last 4 games but we will see how big it is after this bad in the Bundesliga.