From Emmanuel at IPE Zone:
Somewhat overlooked, however, was the role played by Ghana's Serbian coach Milovan Rajevac. When it comes to coaches plying their trade internationally, few compare to the Serbians' drive for adventure. There is something innately curious at work here, so much so that I must say Serbia's best-known exports are football coaches. Some greats ply their trade mostly at home like Ljupko Petrovic who led then-Yugoslavian side Red Star to victory in the European Cup--today's Champion's League--in 1991.
However, there is a peripatetic legend who stands above them all: Bora Milutinovic. Our man Bora is justly famous for his international exploits. Together with the Brazilian Carlos Alberto Parreira, he is one of only two persons to coach five different teams at the World Cup: Mexico (1986), Costa Rica (1990), the United States (1994), Nigeria (1998), and China (2002). While he can't boast of winning a title like Parreira did in 1994 with Brazil, nobody has equalled his record of taking four different national sides past the group stage until he was unable to do so with China in 2006.