After retiring he worked as a backs coach with ASM Clermont Auvergne. At the end of 2012 it was announced that he would go to Northampton Saints as their backs coach for the start of the 2013/14 season. For the 2017 Six Nations Championship, he has assumed the role of attack coach for the Wales national rugby union team. After a three-year stint with Montpellier, King joined Gloucester.