Dortmund only have 10 games left this season and they can still improve, but are you sure Dortmund can do it without mistakes?
Dortmund have lost 9 times and drawn 5 times in 24 matches, so it is a rather poor statistic to expect them to impress in the next 10 matches. I can only imagine that Dortmund will win 5 of the next 10 games for an extra 15 points, while they will not qualify for the Champions League. If I'm wrong, it could be that Dortmund really changes.
If we are been very honest here we will all agree to the fact that Dortmund is very like not to win all of the remaining ten games they have got left this season and so they are not even going to have tha opportunities to become the title contender at this point because literally they aren't even in that shape to win as much as half of the remaining games to get them that 15 points and even if they do, their chances still remain small as Munich and Leverkusen already are far ahead at the top of the table, they may only get a chance for qualification to the UCL next season.