About Klopp statement “having run out of energy to coach” when he decided to terminate his contract at Liverpool at the time, I think it's true. Because I saw Klopp really expended all the energy he had at that time, at least it became a different vision or judgment if we looked at Pep Guardiola and Klopp. So yes, I think Klopp has really lost his energy to be a manager, but if it is to serve in another position then it seems possible.

But indeed, if the news about Klopp being at Dortmund at this moment I think it is also only temporary. But even though it was only for a short time, at least Klopp presence was really able to raise the spirit of the staff, players and to the fans. So yes, with Klopp presence in Dortmund,  hopefully it will make Dortmund able to get better results after this international break.