Fayetteville, Ark. — Slim Chickens, a leading fast-casual franchise, has strengthened its executive team with the appointment of restaurant industry leader Christina Vaughan to senior vice president of operations. Vaughan will work closely with the chief operating officer of Slim Chickens, Sam Rothschild, handling various aspects of the brand including franchise, corporate and training operations. Additionally, in this role, she will be overseeing the cross-functional leadership team and working directing with the partnership group. With more than two decades of experience in the restaurant industry, Vaughan is well suited to …