 This period encompassed short spells with Ayr United (scoring in the Ayrshire derby against former Celtic teammate Gordon Marshall), Carlisle United, Partick Thistle, and Alloa Athletic.Since his playing retirement, Walker has worked as a pundit for STV on their "Scotsport" highlights programme, which he became the main presenter of, alongside Grant Stott, due to Jim Delahunt's departure.The programme was axed in May 2008, due to increasing competition from BBC Scotland's "Sportscene".