 As deputy, he was also allowed to choose his own portfolio, that of Treasurer—the post he had always wanted.He developed good relationships with his department—which contained a number of highly skilled economists—and was appointed a governor (1966–69) of the International Monetary Fund and chairman (1968–69) of the board of governors of the Asian Development Bank.Extensive knowledge of his portfolio, his understanding of economics, his inquisition of public servants and his desire to keep control of expenditure often made him unpopular, but these qualities boosted his reputation as a treasurer.