Of course it's possible but i can't see it.
They're making so many mistakes in the defence....a Lewandowski could maybe score a hat-trick in a match against Cologne (or Hamburg two weeks ago) and they could still win a match.
But like said they don't have a striker like him and their attacking players can't score enough goals to get something from this matches.
We're average/poor in the defence too....but Di Maria, Rooney, Falcao, RVP, Mata & Januzaj can give us enough goals to win matches against clubs like QPR, West Ham or Everton.
Bayern Munich vs Dortmund in two weeks will be very important for Dortmund....first of all they must beat Hannover next weekend
If they beat Hannover and then can beat Bayern Munich or at least a draw with a very good game.....then they go up in the table
But no win against Hannover then they're really fecked and will probably lose 3-0/4-0 in the Allianz Arena
Finishing has always been Lewandowski's biggest weaknes.. Immobile might actually be stronger in that aspect.. and Mkhitaryan, Aubameyang, Reus, Kagawa and Kuba are all very capable of scoring 10 goals a season in the league, their problems aren't that simple.
Finishing also wasn't the problem today, it was clearly sloppy touches/passing/defending and a lack of cohesion/automatisms. Whereas at the beginning of the seaons I would have attributed Dortmund's problems almost entirely to their injuries it now seems pretty obvious that they are also in a bit of a vicious circle when it comes to the mental aspects of the game.
And I doubt that the result against Bayern will simply mirror the one against Hannover..