The team's tactics were, without a doubt, what everyone was most interested in, and also most worried about.
Klopp's tactics were advanced, but to the Dortmund players, they were also completely new.
In fact, last season under Dom's management, they had used a 4-4-2 formation with two strikers.
And Klopp?
He wanted to implement a 4-2-3-1 or a 4-3-3 formation.
This represented a massive change.
More importantly, Klopp's tactics placed a heavy emphasis on a high-pressing game and immediate counter-pressing upon losing possession.
Dortmund truly didn't have much time to prepare.
The UEFA Europa League qualifying rounds were two-legged ties.
Then came the DFB-Pokal, and after that, the Bundesliga season.
The first round was a home game against newly-promoted Cologne, followed by an away match against Hamburg, then a home game against Stuttgart, and an away game at Frankfurt.
