Rear Adm. William D. Baumgartner Seventh Coast Guard District commander and Director of Homeland Security Task Force - Southeast receives a certificate of appreciation from Coast Guard Commandant, Adm. Robert J. Papp during a change of command ceremony at Coast Guard Air Station Miami in Opa Locka, Fla., Wednesday. Rear Adm. John H. Korn relieved Rear Adm. William D. Baumgartner as Seventh Coast Guard District commander and Director of Homeland Security Task Force - Southeast during a time-honored military tradition that formally transfers command responsibility, authority and accountability from one individual to another. U.S. Coast Guard Photo By Petty Officer 3rd Class Sabrina Laberdesque.