Aspinall became head coach at Harrogate in 2007 and, following a strong few seasons for the club, was invited by Andy Key and Neil Back to join the Leeds Carnegie backroom staff in 2010 for their assault on the Premiership.
In 2007, Aspinall became the head coach of Harrogate. After achieving notable results over several seasons with the club, he was approached by Andy Key and Neil Back to join the Leeds Carnegie backroom staff in 2010 as they sought to compete for the Premiership.