150918-N-AT895-105 ANNAPOLIS Md. (Sept. 18, 2015) Secretary of the Navy (SECNAV) Ray Mabus, Adm. John Richardson, and Chief of Naval Operations (CNO) Adm. Jonathan converse before a change of office ceremony held at the U.S. Naval Academy. During the ceremony, Greenert is relieved by Richardson as CNO. (U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Laird/Released)