Wired called her the heir apparent at Microsoft, and it’s easy to see why. Julie Larson-Green now leads the Devices and Studios group at Microsoft, and she’s responsible for all hardware development, including Xbox and Surface. If Microsoft hopes to compete against Apple and Samsung in tablets, phones and the living room, it’s Larson-Green who will lead the charge. She was formerly the engineering head of Windows, replacing Steven Sinofsky. Larson-Green was initially rejected from working at Microsoft before winning some execs over 5 years later with her assessment of their software code compilers. Now she could take over the whole show.