Meet the 45-year-old executive helping Kroger take on Amazon, Walmart, and Aldi

The stakes have never been higher for Kroger. The 135-year-old grocery chain is facing stronger competition than ever before, between Amazon's foray into groceries with its acquisition of Whole Foods, Walmart's multi-billion-dollar investments in store remodels and digital grocery services, and the rapid growth of German discount grocers Aldi and [...]