Just how GOOD was Ronald Koeman Actually?

COMMENT BELOW WHAT PLAYER I SHOULD DO NEXT. How good was Ronald Koeman actually? #GOAT New episode of a documentary series where I plan to present all the greatest players of all time and then give them a score so a ranking of the best players can be created. In this episode we take on Ronald Koeman who played for Barcelona and PSV for most of his career , not only one of the greatest defenders of all time but one of the greatest players of all time. See how Ronald Koeman ranks and just how good was he.