Louis van Gaal is number 22 in 90min's Top 50 Great Managers of All Time series. Follow the rest of the series over the course of the next five weeks.
Love him or hate him, and it is that black or white, Louis van Gaal is one of the great figures of modern football history: a stubborn idealist, an enigmatic personality, but above all, a serial winner.
For Van Gaal, two seasons at Manchester United that brought down the curtain on a 25-year career in 2016 covered all three. He was ruthlessly committed to his philosophy - ultimately to his detriment with a lack of correct personnel to implement it; the media and fans struggled to work out his marvellous eccentricities; and he delivered the club's first major trophy since Sir Alex Ferguson retired in the shape of the FA Cup - the club's first in the competition for 12 years.