Congrats to Dortmund for beating the worst teams of the season 2 times in a row!

Until they face more challenging teams, it is difficult to be sure whether they are back on track or not.
Before anything else, they face Lille in the Champions League next time. It is a home game. I think Dortmund will get a good result to get advantageous.
Interestingly they seem better there compared to the Bundesliga...