[4] He went on loan to six clubs in as many years, namely Halifax Town, Rotherham United, Blackpool, AFC Bournemouth, Crewe Alexandra and Stockport County.
In September 1993 he joined Scottish club Hamilton Academical, where he made his name.
After leaving Hamilton in 1995, Duffield went on to play for four other Scottish clubs: Airdrie, Raith Rovers, Morton and Falkirk.
At the close of the 2006–07 season, Duffield was named Retford United manager but will still continue as a player.
In September 2011, Duffield replaced Tommy Taylor as manager of Belper Town.