"We had two big chances in the first half but Dortmund were more effective and clinical in front of the target today," Monchengladbach head coach Rose said.
Barcelona sit out the first two weeks of La Liga after playing in the quarterfinals of last season's Champions League, and so far the only new faces at the Camp Nou are teenage forward Pedri, Portuguese winger Francisco Trincao and midfielder Miralem Pjanic, who arrives as part of a deal which saw Arthur Melo move to Juventus.
"Staying at the top might be much harder than getting to the top. One has to consider all the possible details both on and off the pitch."
Fans can't wait for Erling Haaland, Jude Bellingham, Jadon Sancho, Real loanee Reinier, Giovanni Reyna and wonderboy Youssoufa Moukoko to get the engine running at full speed.
Jota has been essential in Wolves' climb out of the Championship and in their ability to establish themselves as a force in the Premier League over the past two seasons, netting 33 goals in a total of 111 league appearances while adding a further nine goals in 14 Europa League appearances last season.
In Group G's other match, Al-Ain FC and Al-Sadd SC shared the points in a thrilling 3-3 draw. Enditem
The idea to add some leadership skills to exiting teenage talents could well pay off if the Swiss coach can create stability.
Monchengladbach approached Dortmund's goal dangerously for the first time in the 32nd minute when custodian Roman Burki saved Jonas Hofmann's shot from very close range.
The club again has put its future in the hands of brilliant but inexperienced up-and-coming players.
The next FIFA World Ranking will be published on October 22. Enditem
"Players like Riqui have something special, but it is going to be very complicated for him here as there is a lot of competition. I have told him that he has a future here, and we will think about what is the best way to succeed at Barca," he added.