France sporting director believes that die Mannschaft have overcome their weaknesses and will be a powerful force in the coming years
The former Bayern Munich defender feels that the three-times world champions no longer have the problem areas they once had, and are well-prepared for the future.
"Germany will dominate European football over the next 10 years. I think they have no weakness anymore," he told Kicker.
"The DFB has a model for football. The structure in Germany is much more stable."
Sagnol did raise one question over Joachim Low's team, however, claiming that die Mannschaft might be victims of their own success.
"Perhaps the only trouble in the German national team is the leadership problem," he asserted. "Germany have not had a difficult phase since 2006, so one cannot say whether the present leadership is good."
In their last three appearances in major international competitions, Germany have progressed to the semi-finals or further.