People overlook the fact that Klopp had already successfully replaced Dortmund’s best striker twice prior to Lewandowski’s departure.
When he arrived at the club, Alexander Frei was their top scorer. A year later, Frei was replaced by Lucas Barrios (bought from Colo Colo for £3.7m), who went on fire them to the league title in 2010/11. The following season Barrios suffered a horrible loss of form – he didn’t score a league goal until the start of February and managed only three more before the end of the campaign – but Dortmund still managed to do the double because Lewandowski stepped into the breach.
As others have already pointed out, Klopp also replaced Sahin with Gundogan (at a decent profit, even though they only got £8m for Sahin) and Kagawa with Reus.
And if Zorc is to be given the credit for buying Lewandowski, Barrios, Reus, Gundogan et al, then surely he also has to be held responsible for the disappointing buys the club made last summer.