WPP's Possible Parts With Its Global CEO and U.S. President Following Wunderman Merger

They're both leaving for an unnamed tech 'unicorn'

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WPP made leadership changes atop Possible today, one week after announcing that the organization would become part of its larger Wunderman agency network.

Global CEO Shane Atchison and U.S. president Jason Burby will both be leaving Possible at the end of this year to take on new executive roles at an unnamed tech “unicorn,” industry parlance for one of the estimated 200 privately held startups currently valued at 1 billion dollars or more.

Martha Hiefield, a veteran of both Possible and Atchison’s former agency Zaaz, who was promoted to global chief talent officer in 2015, will assume the newly created role of CEO of the Americas reporting to Wunderman North American CEO Seth Solomons.

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