It was like a walk in the park for Leverkusen when they were attacking against Dortmund. They could have scored more goals than this as well. Dortmund are really vulnerable against through balls and crosses. 
They concede goals too easily. Like they conceded 2 goals in the first 8 minutes of this game... Nuri Şahin still can't find a solution to their defensive weaknesses. This is just shortening his time at the team day by day honestly.
After getting a 3-2 win here Leverkusen have started to wait for Bayern Munich to lose points. It isn't impossible though considering the h2h history at Gladbach's home.
But I think Bayern Munich will manage to win anyway.
Leverkusen was doing this because of their strength due to which they could only score 3 goals and in addition Dortmund players also scored 2 goals but still they lose this match. In addition, Dortmund have a weak record, which prevented them from defeating Leverkusen in this game. They had to do it because it was their own fault that they didn't apply the pressure that Dortmund players couldn't stop. It is good to be honest but along with that the team should also be strong and win matches so that they can improve their record. They concede goals too easily. Like they conceded 2 goals in the first 8 minutes of this game... Nuri Şahin still can't find a solution to their defensive weaknesses. This is just shortening his time at the team day by day honestly.After getting a 3-2 win here Leverkusen have started to wait for Bayern Munich to lose points. It isn't impossible though considering the h2h history at Gladbach's home.
But I think Bayern Munich will manage to win anyway.I don't think Bayern Munich won't lose their points and play badly because they also know that if they lose their points by playing badly they will go down in the standings.Bayern Munich record is not as good as Leverkusen but Leverkusen still wants to see Bayern Munich drop points.