Over the past year, PepsiCo announced that it would reduce sodium, fat, and sugar in products globally; debuted the Pepsi Re- fresh Project, a CSR/cause program in which consumers compete for grants to activate change; and, in a bold move for its namesake beverage brand, replaced traditional Super Bowl ads with a digital promotion for Refresh.

As PepsiCo SVP and CCO since 2008, Julie Hamp, who faced many communications challenges during her 25-year tenure at GM, has been at the ...