In 1950 McPhail was transformed into a centre forward, a move that revitalised his career. During the first season following the switch he was "his side's inspiration, and the idol of the supporters", according to author and historian Tom Campbell in "Glasgow Celtic 1945-1970". He captained the team to a Scottish Cup victory in 1951, scoring seven of the team's 19 goals in that competition, including the only goal of the final against Motherwell with a skilful lob over the opposing goalkeeper. This marked the first cup success for the club in 14 years; it was followed by with a Coronation Cup victory in 1953 and a league championship title and Scottish Cup double in 1954 (although he played little part in the cup run). It was in this period McPhail earned five caps for Scotland, scoring three goals. He also played for the Scottish League XI.