Bert van Marwijk
Been started his coaching career as assistant manager to Bert van Marwijk at Feyenoord in 2000. He held this position until the summer of 2004 when Bert van Marwijk choose to leave Feyenoord and head to Germany to manage Borussia Dortmund. Been headed across Rotterdam to join Feyenoord's sister club Excelsior in 2005 and in his sole season in-charge of the club got them promoted from the Eerste Divisie to the Eredivisie. Along the way his team played attractive football and eventually finished seven points clear of second placed VVV Venlo.