Los Angeles — FAT (Fresh. Authentic. Tasty.) Brands Inc. has elevated Jenn Johnston to the role of chief marketing officer. Since the acquisition of Global Franchise Group in July 2021, Johnston has held the role of president of the quick-service division at FAT Brands, overseeing brands including Round Table Pizza, Great American Cookies, Marble Slab Creamery and Pretzelmaker. With the promotion, Allison Lauenstein and David Pear will assume brand president roles. Lauenstein will serve as brand president of Great American Cookies, Marble Slab Creamery and Pretzelmaker. She brings over a …