Krulak said that the military fight against the communists was progressing and being won, while Mendenhall stated that the country was civilly being lost to any U.S. influence. Kennedy reacted, asking, "Did you two gentlemen visit the same country?"Kennedy was unaware that both men were so much at odds that they did not speak to each other on the return flight.[209]
In October 1963, Kennedy appointed Defense Secretary McNamara and General Maxwell D. Taylor to a Vietnamese mission in another effort to synchronize the information and formulation of policy. The objective of the McNamara Taylor mission "emphasized the importance of getting to the bottom of the differences in reporting from U.S. representatives in Vietnam".[210] In meetings with McNamara, Taylor, and Lodge, Diem again refused to agree to governing measures, helping to dispel McNamara's previous optimism about Diem.[211] Taylor and McNamara were enlightened by Vietnam's vice president, Nguyen Ngoc Tho (choice of many to succeed Diem), who in detailed terms obliterated Taylor's information that the military was succeeding in the countryside.