Born in Glencull, near Ballygawley, County Tyrone, Mickey was educated at the Christian Brothers Grammar School in Omagh. He trained to be a teacher at St. Joseph's College in Belfast (now St Mary's). He taught for five years at De La Salle Boys School in Kircubben for five years. He then moved to St Ciaran's in Ballygawley. In his 22 years spent there, he achieved numerous successes, including Tyrone, Ulster and All-Ireland Vocational Schools titles.
For his beloved Tyrone, Mickey managed the County Minors (1991–1998) and Under 21’s achieving unprecedented success. He guided the Under 21’s team to two All-Ireland titles and three Ulster Under 21 titles. He led the Minors to an All-Ireland Minor title and three Ulster Minor titles. Graduating to take over the County Seniors, Mickey is the most successful football in Tyrone’s history. To date is has led Tyrone to three All-Ireland titles, five Ulster titles, one National League, and nine Dr. McKenna Cups.
Mickey published his autobiography in 2009 and has also written a weekly column for The Irish News focusing on hot topics in gaelic football.