Petco has named former Five Below CEO Joel D. Anderson as its new CEO and a member of its board of directors, effective July 29.This announcement from the pet care retailer comes a day after Five Below said that it had begun a leadership transition, with Anderson stepping down from his roles of president and CEO at the retailer, and from its board of directors, to pursue other interests.At Petco, Anderson will succeed R. Michael Mohan, who will transition from his role as interim CEO to chair a new board co ...