San Diego — Jack in the Box Inc. has promoted Del Taco’s chief operating officer, Chad Gretzema, to Del Taco brand president. He replaces John Cappasola, who has stepped down from his role as Del Taco president & chief executive officer. “Chad has been an instrumental part of the executive team at Del Taco that has compiled an impressive 8 consecutive years of positive franchise same-store sales,” says Darin Harris, CEO of Jack in the Box. “He has been a champion for Del Taco operators, franchisees and guests as the …