Taco Bell franchisee Diversified Restaurant Group has grown to 300 units since forming to acquire 29 restaurants in 2014, and it aims to double both its unit count and revenue over the next five years. Newly named CEO SG Ellison will lead growth efforts, which will include acquisitions, new openings of both Taco Bell and Arby's units, and the possibility of expanding with a new brand. Nation's Restaurant News