This week on Modern Marketers, Walmart SVP and CMO William White joins Google's Joshua Spanier and Bethany Poole to talk about how he empowers his team to stay nimble, using customer insights as a competitive advantage and how the brand breaks through during the busiest time of the year: the holidays. William discusses how brand purpose and values act as a guide, getting to the crux of what's driving consumer behavior and staying a season or two ahead.