Amazon.com Inc.’s Whole Foods Market chief has been tapped to run the retail giant’s entire grocery business. Jason Buechel will become the vice president of worldwide grocery stores, Amazon retail chief Doug Herrington said in a note to employees,

Jason Buechel, who remains head of the specialty banner, steps into a new role in which he will also oversee the Amazon Fresh and Amazon Go chains.

Jason Buechel will expand his role to oversee Amazon’s Worldwide Grocery Stores business, including Amazon Go convenience stores and Amazon Fresh physical and online stores, while also continuing to serve as Whole Foods Market CEO.