SAN JUAN, Puerto Rico - Lt. Cmdr. James O'Mara, Capt. Drew Pearson, Commander, Sector San Juan, and Lt. Jacob McMillan are all smiles after relinquishing command of the Coast Guard Cutter Farallon, July 22, 2011. A military unit's change of command is a transfer of total responsibility, authority and accountability from one individual to another. U.S. Coast Guard photo