Now the real reasons are emerging (Zeit online) why Dortmund are floundering, apparently Klopp has turned Dortmund into a cult, dependant upon their leader Klopp and when he's ailing, the whole cult ails.
Google translate sorta says.
'Klopp moans about the loss of the many injured players, but BD are not hit harder with injuries than Dortmund, Schalke or Bayern. Or take the alleged World Cup hangover which Klopp likes to cite as another cause, no European team has suffered as little as Dortmund at the World Cup. If you listen to Klopp, the bad first round in the bundesliga was a kind of a biblical stroke of fate, ultimately inexplicable and mysterious. Clearly, if the coach is not to blame, then there is nothing left but to jump into the the realm of the irrational. This is romance - the bad kind.'