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Microsoft announced a pretty big shake-up earlier on Wednesday, when the company noted that four major executives are leaving the company as it restructures its business. That includes Stephen Elop, the former Nokia CEO, but also someone else.

The Verge said Wednesday that Jo Harlow, Microsoft's corporate vice president of phones, is also leaving the company. It's not immediately clear where Harlow is heading next, or why she is departing Microsoft. Harlow did have a key role inside the company, however, and came over to Microsoft when the firm acquired Nokia's devices and services division. According to The Verge, it was Harlow who decided to focus on Windows Phone and bail on building new feature phones.

You can imagine the kind of power Harlow held, and it's kind of strange to see two prominent execs depart ahead of the launch of Windows 10 Mobile this fall.