5) Josh Heaton
Despite big expectations when he arrived from Darlington for a fee of £75,000, Heaton flattered to deceive at St Mirren Park.
The 21-year-old played only twice for the club before being sent out on loan to Kidderminster Harriers.
After returning to Darlington, he had spells with Bradford Park Avenue and Longridge Town. He is now playing in Australia for Mornington SC.