Cynthia Littleton Business EditorLongtime Disney corporate communications chief Zenia Mucha and general counsel Alan Braverman will step down from their posts at year’s end.The scheduled departures of two top corporate officers will coincide with Bob Iger’s exit from Disney executive chairman after more than 45 years with Disney and ABC. Iger served as CEO for 15 years before segueing to executive chairman in February 2020, when Bob Chapek was tapped as CEO.