Thomas Tuchel is content with Borussia Dortmund's performance in their 3-0 DFB-Pokal defeat of Eintracht Trier, despite his side's lack of finishing touch on Monday.
Dortmund cruised to a comfortable win in their first-round match between the two teams thanks to two goals from Shinji Kagawa and an Andre Schurrle strike.
However Pierre-Emerick Aubameyang missed a number of chances to put the Bundesliga side further ahead.
Speaking after the match, Tuchel told ARD: "I am very satisfied. The early lead gave us security. In the second half we created many more high-profile opportunities. We could certainly should have able to make a few more goals.
"The bottom line is we can build on this game."
Dortmund will face Tuchel's former team Mainz in their Bundesliga opener and he could give a start to 18-year-old right-back Felix Passlack, who impressed in Monday's win.
"Felix Passlack has used the time [during preseason], from the first moment [you could see] that he had big plans," Tuchel added.
"We saw that throughout the preparation. He played well against Bayern and again today. "
Passlack told ARD of his team's performance: "We played very well, especially in the first half. With more determination, we would end up also scoring more goals.
"The whole team supported me, they give me tips and advice on what I can do better.
"In the Bundesliga on Saturday against Mainz we should just play like today and kick on."