In my opinion, Dortmund are not very weak, the problem is that the other teams that were weak last season are strong this season and that is causing Dortmund to not be in the top 4, about the last game in which Dortmund lost, I think that in the last games Dortmund have had problems in defense, but they also have a good attack, so in my opinion this is not a big problem, the coach can correct what is wrong in defense.
Other teams are getting stronger, but Dortmund is getting left behind, that's the problem Dortmund is experiencing.
A few seasons ago Dortmund would always be a competitor to Munich for the Bundesliga trophy. But now they are far from the expectation for that. If they were in 5th or 6th position in the standings, maybe we could still say that the team is not weak. But Dortmund is currently in 10th position in the standings. Dortmund has a lot to deal with.
Yes, that's right. I agree with you more, Dortmund is getting weaker and other teams are getting stronger. If Dortmund doesn't immediately improve, it is not impossible that Dortmund will fail to finish in the top four. A very strange season for Dortmund even though last season they performed very impressively, they were always a tough competitor for Bayern Munich and even became the runner-up of the UCL league last season. However, since being coached by Nuri Sahin, Dortmund's performance has declined and even the players are not enthusiastic in every match, especially when the team is behind.
Appointing a coach like Sahin is a failure for Dortmund. They should immediately fire him because he doesn't do good things, doesn't know how to work with young players, and can't utilize existing players to bring them to a higher level. So to save Dortmund maybe they should fire Sahin, because it's too bad from the last 6 matches in the Bundesliga, Dortmund only got one win.