With revenues of more than €444 million and 650 employees, the Sligo agri-business Aurivo is a key strategic player in the economy of the north-west of Ireland. Its importance is amplified by its co-operative ownership structure, with 10,000 farmers – from Co Mayo to Co Tyrone – all holding shares in the business. Just before Christmas, however, many of those members, who supply 440 million litres of milk each year to Aurivo, received quite the shock when its longstanding chief executive resigned. Those contacted by The Currency did not expect its top executive to leave now. Yet that is exactly…