Kammala jumla mai zuwa: Ya zama kocin Cardiff City a watan Nuwambar 1973, amma a watan Afrilun 1974 ya bar mukamin kocin tare da kungiyar kwallon kafa ta Iran. Ya fara aikinsa tare da nasara bakwai a jere, ya jagoranci su zuwa lambar zinare a gasar
Wasannin Asiya na 1974 da cancantar wasannin Olympics na Montreal. A watan Janairun 2006, an gayyaci O'Farrell zuwa Iran don halartar wani biki don girmama tsoffin 'yan wasan Persepolis, tare da Alan Rogers.