 Immediately after retiring from inter-county activity Cahill became involved in team management.He has taken charge of club and inter-county teams all over the country, including Portumna in Galway, Doon in Limerick, Graigue-Ballycallan in Kilkenny, as well as the Laois senior inter-county team.Cahill was appointed manager of the Antrim senior hurling team for a second term in November 2009.