Kraft Heinz Co. named 29-year-old former Goldman Sachs bankerDavid Knopf as its next chief financial officer last week, part ofa shake-up aimed at reigniting growth at the slumping packaged-foodgiant.

The changes also included moving current CFO Paulo Basilio tothe role of zone president for U.S. operations, tasking him withfixing a challenging domestic business that generates about 70% ofits sales. Basilio, 42, will replace Kraft veteran George Zoghbi,though that executive will stay on as a strategic adviser.

Kraft Heinz hasn't posted sales growth since the company wascreated in a 2015 merger orchestrated by the private equity firm 3GCapital and Warren Buffett's Berkshire Hathaway Inc. The company ismired in an industrywide slowdown: The largest food companies inthe U.S. have lost almost $16 billion in sales over the past threeyears amid broad shifts in how consumers eat and shop.