David WittDavid Witt has joined San Francisco-based WCG as group director-brand strategy and engagement in Minneapolis, where he will establish a beachhead for the healthcare/tech firm.

As senior manager of consumer engagement, Witt worked on GM brands (Yoplait, Pillsbury, Progresso and Cheerios) in social media and word of mouth marketing. He created GM’s engagement blogs called MyGetTogether, MyBlogSpark and Psst.

At Hershey, Witt was director of global marketing and brand PR, where his team pushed two of its brands into the top ten social media brands ranking. The group bolstered digital’s role as part of Hershey’s paid, earned, shared and owned (PESO) strategy.

Witt was elected chairman of the World of Mouth Marketing Assn. and currently serves as a board member.

Bob Pearson, president of W2O, who has worked with Witt during the past several years, expects him to play a role as “we build out the next generation of new models in PESO and WOM that will pragmatically disrupt the status quo."

W2O is parent of WCG.