 This 1919–20 season was to be Miller's last for the "Reds" as he was transferred to bitter rivals Manchester United on 23 September 1920, although not before he managed to earn himself a descent goals-per-game ratio at Anfield scoring 56 times in 146 appearances (averaging a goal every 2.6 games).After a season at Old Trafford, Miller later played for Heart of Midlothian, Torquay, Hamilton for a second spell and Raith Rovers before he drew a curtain on his playing career.He had a short spell as manager of Barrow, during which he recruited his brother John.