Duolingo killed off its brand mascot and brought it back to life as part of an unhinged social media strategy and more wholesome comms approach.
Joseph previously held roles at Ketchum such as US CEO and global CMO.
Vice chair Andy Hardie-Brown is also leaving his role for an advisory position.
The job eliminations were focused in the French holding company’s media division.
Duff joins the online marketplace from Nordstrom, where she was VP of corporate affairs.
Decipher Health will predict the impact of communications across six therapeutic areas, the WPP firm says.
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