7. Louis van Gaal (Bayern Munich; 2011):
The Dutchman won the Bundesliga, a domestic cup double and took Bayern to the final of the Champions league in his first season in charge at the Allianz Arena. However the following season, Bayern crashed out of the Round of 16 in the UCL and were third in the points table, which saw him get sacked in April. He will be known for his time there for giving a number of youngsters a chance to shine on the big stage.