However, with the appointment of Tom Whittaker as manager in the summer of 1947 the Gunners immediately went back to winning ways, and McPherson was a regular in the First Division Championship-winning of 1947–48, playing 29 League matches, mostly on the right wing but also the left after Denis Compton was injured. Characterised by his pace, physical strength and powerful shooting (but also known for his inconsistent form, much to the frustration of Arsenal's fans), McPherson continued to be a regular in the Arsenal side for the next three seasons, although he missed Arsenal's only other success at the time, the 1950 FA Cup Final, with Freddie Cox and Denis Compton playing on the wings that day.