I doubt Ten Hag, not because he is a bad coach but the squad that Leverkusen currently has is not as good as Bayern Munich, especially since several of their key players have left the team, so I think realistically, Bayern Munich has a strength that cannot be matched by other Bundesliga teams.
I am pretty sure that its not going to be that great, we are going to end up with a lot more worse results with time. We should be considering this as something that will take a while for us to handle all of it. I understand that we are going to have something that will take a while for Leverkusen to fix it.
The difference compared to last year or the previous year is that nobody expects them to be champions, just be in the top four. Xabi won in a year, and became second in a different year, that is good, ETH will be 7th or something this season and blame the bad squad that they have. That is what terrible managers do, they try to blame everyone else as long as they can, without seeing the trouble within himself. Leverkusen will be like that this year, they will be bad.