Domino's ( DPZ) named a new chief financial officer to replace Harry J. Silverman, a longtime hand at the pizza-delivery chain who's retiring after more than 20 years. With Silverman's departure, L. David Mounts will become the new executive vice president of finance and CFO of the company, which now offers a variety of crust thicknesses for its pizzas. Domino's achieved marketing celebrity in the late 1980s when it turned popular practice on its head, actually casting an amusing mascot called "the Noid" in the role of a villain, while essentially the company itself was portrayed as the heroic force in a neverending effort to avoid pizza ruination. The company, now known for its heat-preserving delivery bags, said Mounts was previously with UPS ( UPS), most recently as corporate controller for U.S. operations. Silverman will stay with the Ann Arbor, Mich., company for the rest of the year to help with the transition.