St. Louis — Panera Brands Inc., which includes the fast-casual and hospitality brand Panera Bread as well as Einstein Bros. Bagels and Caribou Coffee, has established its next generation of CEO leadership and board governance in preparation for its eventual IPO. Current CEO Niren Chaudhary will become chairman of Panera Brands, handing the CEO reins to José Alberto Dueñas, currently president and CEO of Einstein Bros. Bagels, effective July 1, 2023. Former Starbucks CFO and independent director Patrick Grismer will become chairman of the audit committee. Over the last 4 …