Dortmund is not consistent this season and that is the reason Bayern Munich are nine points above them.They started the season well,but at some points,fatigue started affecting their players and that's why they are dropping points.
Nevertheless,there is still time to meet up,but I doubt if Bayern will want to lose matches to the extent Dortmund will equal points with them.
Exhaustion can surely affect any players mentally or physically that is why this holiday break can sure become a good relief in easing up tension from their previous games, and surely this will benefit not only Dortmund but the other clubs aswell, or Dortmund is still not recovering from the Bayern lost, because of the call of the referee, they are sure to close by one goal in winning from that match, and because of that call it all change, this is just my speculation because of their match against Bayern, Dortmund is not the same anymore, or should I say Erling Haaland is pretty much not the same anymore, some games could surely have an effect to players,
We are not going to be seeing any Bundesliga match until January 7. There is a really big gap to rest and pull themselves together for the teams in a bad condition recently. And Dortmund are also one of them now. I don't like their latest performances. They don't make the effort needed to defeat their competitors one by one. And I've no doubt that Bayern Munich will still come back as a strong team. They are the most disciplined team in the league.
I can not say for sure if they are still not coping up from the Bayern loss, that is why some players of Dortmund is not 100% having a good performance, but this is just a speculation of mine, or pretty much they are just exhausted both mentally and physically and need some rest, that is why this holiday break is a big help not only for Dortmund but for all clubs aswell.