O'Shea managed the Kerry minor teams in 2002 and 2003.
Dr Crokes
At club level O'Shea managed Dr Crokes to successive Kerry County Finals in 2005 and 2006. Despite being the manager of Kerry he also continued to coach Dr Crokes in their Senior Club Football Championship, which ultimately ended in defeat in the Final Replay in April 2007.[1]
He remained in charge of the Dr Crokes senior team and managed them to two further Kerry Senior Football titles in 2017 and 2018.[citation needed]
Kerry
O'Shea was appointed to manage the Kerry senior footballers for the 2007 season.[2][3] He named Dr. Dave Geaney of Castleisland Desmonds and Seán Geaney of An Daingean CLG as selectors. He also announced John Sugrue of Renard as his physical trainer.[citation needed]
Kerry won the All-Ireland that season with a victory over Cork in the final. He also led Kerry to All Ireland final in 2008 where they lost to Tyrone, before stepping down as manager on 16 October 2008.[4]