7. Guus Hiddink
Guus Hiddink is arguably the most adaptable coach of the modern era.
The Dutchman, in the last 13 years alone, has managed top clubs in Spain, England, Holland and Russia, and coached no less than four national teams.
The ex-midfielder has rarely disappointed, wherever he's coached, and commands huge respect in South Korea after guiding the national team to the World Cup semi-finals.