I actually want to believe that Bayern Munich knew it much earlier before now that they are going to have Leverkusen as their biggest rival and contender for the trophy this season so making sure they are going to be able to stay ahead of them was one thing that was supposed and going to be their priority this season and now the the distance has been closed to the point is just four point difference is some how disturbing but then Munich still have the chance to still staying ahead.
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.
Restoring the status as champion is a task that must be completed by Kompany this season, Munich under his command has returned to the right track but it will not be easy to carry out the task because Leverkusen with Xabi Alonso has emerged as a new challenger besides that Xabi certainly targets the same thing, namely maintaining the throne that was obtained last season. The current 4-point difference is still too thin so that Leverkusen still has a big chance to catch up. Apart from Bayern Munich's extraordinary performance at this time, I think the chance to defend the title for Leverkusen is still there.