Another member of the team was William D. Pawley, a wealthy businessman and diplomat with extensive knowledge of the aviation industry. Peurifoy was a militant anti-communist, and had proven his willingness to work with the CIA during his time as United States Ambassador to Greece. Under Peurifoy's tenure, relations with the Guatemalan government soured further, although those with the Guatemalan military improved. In a report to John Dulles, Peurifoy stated that he was "definitely convinced that if [Árbenz] is not a communist, then he will certainly do until one comes along". Within the CIA, the operation was headed by Deputy Director of Plans Frank Wisner. The field commander selected by Wisner was former U.S. Army Colonel Albert Haney, then chief of the CIA station in South Korea. Haney reported directly to Wisner, thereby separating PBSUCCESS from the CIA's Latin American division, a decision which created some tension within the agency. Haney decided to establish headquarters in a concealed office complex in Opa-locka, Florida. Codenamed "Lincoln", it became the nerve center of operation PBSUCCESS. The CIA operation was complicated by a premature coup on 29 March 1953, with a futile raid against the army garrison at Salamá, in the central Guatemalan department of Baja Verapaz. The rebellion was swiftly crushed, and a number of participants were arrested. Several CIA agents and allies were imprisoned, weakening the coup effort. Thus the CIA came to rely more heavily on the Guatemalan exile groups and their anti-democratic allies in Guatemala. The CIA considered several candidates to lead the coup. Miguel Ydígoras Fuentes, the conservative candidate who had lost the 1950 election to Árbenz, held favor with the Guatemalan opposition but was rejected for his role in the Ubico regime, as well as his European appearance, which was unlikely to appeal to the majority mixed-race "mestizo" population. Another popular candidate was the coffee planter Juan Córdova Cerna, who had briefly served in Arévalo's cabinet before becoming the legal adviser to the UFC. The death of his son in an anti-government uprising in 1950 turned him against the government, and he had planned the unsuccessful Salamá coup in 1953 before fleeing to join Castillo Armas in exile. Although his status as a civilian gave him an advantage over Castillo Armas, he was diagnosed with throat cancer in 1954, taking him out of the reckoning.