 Complete the following phrase:  After his playing career, he was assistant coach at Sparta for three years, under head coaches Denis Neville and Bill Thompson. Afterwards, he managed Holland Sport, Heerenveen, FC Groningen and various teams of the Royal Dutch Football Association KNVB, including the womens national team. He also coached the mens national futsal team, achieving second place at the 1989 World Championship and qualification for the 1992 World Championship, 