Warren Buffett's company, Berkshire Hathaway, is the largest shareholder in Kraft Heinz.In a move that many thought could be coming, Kraft Heinz's (KHC 1.17%) management team has chosen to split into two. One company, Global Taste Elevation Co., will comprise the faster-growing sauces and condiments products. The other company, North American Grocery Co., will house the North American grocery business.The move comes after shares of Kraft Heinz have struggled immensely, down over 22% in the past five years. ...