Stephen Elop: Resigned
The most recent departure from Microsoft came as a shock. In 2008, Microsoft wooed Elop away from his role as COO of Juniper Networks and gave him the role of president of Microsoft Business Division. Elop took the place of longtime Microsoft executive Jeff Raikes (see slide 15), who retired, and immediately became a member of the software giant's senior leadership team. But within three years, Elop left Microsoft for Nokia when the Finnish mobile phone company unexpectedly tapped him as its new CEO.