The headquarters of Sport Ireland is located in a stylishly renovated coach house adjacent to Abbotstown House, a rambling two-story Regency property that has seen better days.  To find it, you have to veer left at the National Aquatic Centre and follow a meandering, manicured road past a jigsaw of indoor arenas, training complexes, pristine playing pitches and the homes of various sporting bodies. “When you think you are there, keep going,” a contact had warned me in advance.  And, he was not wrong.  The 500-acre National Sports Campus at Abbotstown in west Dublin is in a constant state of…