 His international career came to an end in 1963, after he suffered a broken leg in three places in a 2–1 win against England at Wembley, following a tackle from England's Bobby Smith.After leaving Rangers, Caldow played for one season with Stirling Albion before moving south in 1967 to become player/manager of Corby Town.He returned to his native Ayrshire in 1970, to become manager of Junior side Hurlford United.