[4] In the days following Albion's promotion to the Premier League in April 2002, Quinn found himself surplus to requirements and was released.
[7] He quickly became Paul Sturrock's first permanent signing for Sheffield Wednesday, joining on a short-term contract until the end of the season.
Quinn retired from playing football on 11 September 2007, due to his failure to break back into the Northern Ireland team.
[16] Quinn collected fifty caps for Northern Ireland, and scored goals against Belgium, Luxembourg, Malta and Serbia & Montenegro.
[18] He obtained the UEFA Pro Licence in 2012 and in 2013 was appointed Head Coach of USL Premier Development League side Central Jersey Spartans,[19] shortly before their dissolution.
In the summer of 2015, he joined National League team, Tranmere Rovers, as first-team coach under new manager Gary Brabin.