 Mills led Tamworth to promotion back to the Conference Premier after winning the Conference North title in 2008–09 and this was confirmed with a 1–0 victory over local rivals Hinckley United on 21 April 2009.The final match of the season, a 0–0 draw away to A.F.C.Telford United, saw Mills come out of retirement after he came on as a 90th-minute substitute for Rodman.