Aloysius Paulus Maria "Louis" van Gaal (Dutch pronunciation: [luˈʋi vɑŋ ˈɣaːl] ; born 8 August 1951) is a Dutch former football player and former manager who currently serves as an advisor for Ajax. At club level, he served as manager of Ajax, Barcelona, AZ Alkmaar, Bayern Munich and Manchester United, as well as having three spells in charge of the Netherlands national team. Van Gaal is one of the most decorated managers in the history of the game, having won 20 major honours in his managerial career at club level, contrasting with his mediocre results coaching the Dutch national team.
https://en.wikipedia.org/wiki/Louis_van_Gaal