Outgoing Mackinaw commanding officer Cmdr. Kristen Serumgard, left, shares a handshake with incoming commanding officer Cmdr. Jeannette Greene as Capt. Eric Doucette, Ninth Coast Guard District Chief of Staff, and chaplain Lt. Cmdr. Kenneth Jewell, far right, look on July 7, 2022. The change of command ceremony, a time-honored military tradition, marked the total transfer of authority and responsibility for the Great Lakes' largest Coast Guard cutter to the incoming captain. U.S. Coast Guard photo by Chief Petty Officer John Masson.