I think that for Bayern it all comes down not to the confrontation with Bayer, but to the task of winning the Bundesliga, and despite the fact that Bayer is now the closest pursuer of Bayern and they have a very good winning streak, I do not think that Bayer has a great chance to defend the champion's title. It will not be easy for Kompany to confront Alonso, because given the victory last season, Alonso has more experience.
Things that should have been favored by many people changed after the first round of the Bundesliga finished. Bayern Munich have recorded a bad record this season so they are 4 points behind their arch rival Leverkusen. The League still has a long way to go.
Bayern Munich has time to change the standings at the top so they can defending the title, we know this will not be easy for Bayern Munich but if they are consistent and compact in the game then it will be easy to catch Leverkusen even though Alonso has more experience but Bayern Munich is the best team that has entered the European record.