Answer
His main contribution was as a coach. Argel Fuchs had a successful coaching career in Europe, leading clubs like Borussia Dortmund, 1. FC Nürnberg, and Hamburger SV. He was known for his tactical acumen, ability to develop young talent, and success in domestic and European competitions. Fuchs' coaching methods and philosophies influenced the development of German football and helped establish the country as a powerhouse in the sport.