Many great companies have two key founders or executives who have complementary skills.
In the U.S., we have Bill Gates and Steve Ballmer. Gates, who founded Microsoft in 1975 with Paul Allen, recently ceded his position as CEO to Ballmer, his former Harvard classmate and a Microsoft executive since 1981. Gates remains chairman and is taking on a new role as chief software architect. Ballmer has been president since 1998. Gates remains the technology guru and strategy genius who has led Microsoft from programming languages to operating systems, desktop applications, enterprise software and a host of Internet ventures.