Louis van Gaal is one of the most successful managers in the history of the sport and it is an undeniable fact. He may have been a stiff personnel to break or rude at times, but his philosophies have been spot on. Of course, he did have a mediocre tenure at Manchester United, but his keen eye to promote youths have always earned a lot of accolades. Be it Netherlands, Spain, Germany or England, van Gaal was one gem of a manager when it comes to identifying the young prospect. So here are five such players who debuted under the former Netherlands manager.