A specific tactical void Wenger identified is Germany's lack of a world-class number nine. While other nations at the World Cup have relied on talismanic figures to navigate tight knockout fixtures, Die Mannschaft have struggled to find a reliable source of goals in recent years.
"I don't think he (Nagelsmann) has made any major mistakes in this tournament. Germany is currently lacking something - this tournament shows how important a true goalscorer is," the former Arsenal manager explained. "You need a player who scores in decisive moments, like Harry Kane in England. But Germany doesn't have that right now."