About Ralf Kettemann
Ralf Kettemann is a 39-year-old German football manager. He belongs to a new wave of modern coaches, a period defined by the tactical evolution of the modern game. He currently manages Paderborn, where he is responsible for tactical decisions, match preparation and dressing-room management. Earlier in his career he also managed Karlsruher U19, gaining experience across different competitive contexts. He is regarded as one of the most influential modern coaches to have come from Germany.