Unfinished Business (published in Australia as Autobiography), by Tadhg Kennelly, with Scott Gullan; Mercier Press, 2009, 353 pages, 16.99 euros (in Australia: Hardie Grant, $35). Tadhg Kennelly is the first man to have won an AFL Premiership Medal and an All Ireland Senior Gaelic Football Medal. He comes from the literary town of Listowel in the Gaelic-football-mad county of Kerry in the south-west of Ireland. In his book, which he has written with Scott Gullan of the Melbourne Herald­ Sun, he describes the Kerry team as “the Manchester United of Gaelic football”. Indeed, Irish sports commentator Eamon Dunphy has said…