What happened in the case of Leverkusen can actually happen to any club and another thing is was that luck was actually on their side because the way Leverkusen was serious last season it would not have been easy for them
If Dortmund and Bayern were in form and just look at this season that Bayern is more committed to the competition this season and that is one of the things that have lowered the expectations of Leverkusen because they know they will not be able to actually keep up.
And the people they thought they will be able to climb over got a new coach and things changed the only people struggling really hard now is not more than Dortmund, why people are surprised is because Leverkusen did not show any weakness last season so things seems to be a little different this season and it is not as if they are not putting enough effort is just not working out at least they played a good game game today and winning fc 5:0 is just one excellent game, and it looks as if they were seriously prepared for against fc even the shots on target are crazy so this shows that from the beginning it was not meant to be easy for FC.