BERLIN, Sept. 2 -- Finding the right team for the 2018 World Cup might turn out to be much harder than expected for the coach of the German national team Joachim Loew.

Beating the Czech Republic away 2-1 and keeping their 100 percent record after seven games speaks of exceptional quality. But the game showed that Loew faces a lot of work trying to combine the established 2017 World Cup winners and the young challengers who won the 2017 Confederations Cup.

"I haven't seen so many lost balls in ten years. It's not the football we normally produce," German defender Mats Hummels commented. While Loew used the game in Prague for new experiments, the 57-year-old created new problems and new discussions revolving around the Bayern Munich striker Thomas Mueller and his tactical approach.

"I wanted to operate with a high offense and create as many chances as possible. But we couldn't gain space in the opponent's half," Loew admitted. Timo Werner (RB Leipzig) and Hummels (Borussia Dortmund) scored the German goals.

Loew's attempt failed, and Germany also faces a leadership problem as they lacked a pivot midfielder.

2017 Champions League winner Toni Kroos (Real Madrid) was overburdened, trying to structure the game in both defense and offense as he was alone in defensive midfield. Striker Mueller, placed right behind the attacking line, could not inspire the attacking game. He was supposed to supply passes for the spearheads Werner and Lars Stindl (Borussia Moenchengladbach) or teammates along the flanks.

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