Paschal Donohoe took an unusual detour last week during a lengthy missive he delivered on Irish banking culture. Amid an explanation and exploration of new legislation aimed at implementing individual accountability within the banking system, the finance minister stepped away from the broad theme of his speech to launch a startling rebuke of the tax profession. Almost entirely unreported, the content of Donohoe’s detour was hugely significant for the profession and for the tax industry in Ireland, particularly given the potential impact that the new round of OECD negotiations on international allocation of taxing rights could have on the Irish…