Radio One Cleveland announces two new on air appointments – Urban AC WZAK welcomes Robyn Simone to middays, and she will serve as APD. Simone was the middayer on co-owned urban WENZ. She replaces Karen Vaughn, who moved to the company’s Indianapolis cluster to serve as PD of Urban AC WTLC. Also joining the Cleveland family is Ro Digga for middays on WENZ “Z107.9.” She’ll also serve as programming coordinator for the station. The former intern has worked her way up through the ranks in Cleveland.