About Theo Janssen
Theo Janssen is a 44-year-old Dutch 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 Vitesse U19, where he is responsible for tactical decisions, match preparation and dressing-room management. Earlier in his career he also managed De Treffers y Alphense Boys, gaining experience across different competitive contexts. He is regarded as one of the most influential modern coaches to have come from Netherlands.