On Tuesday evening, as she watched Daniel Wiffin swim his way to an Olympic gold medal in the reconstructed La Défense Arena in Paris, Sarah Keane felt both pride and trepidation.  The reason for the pride was obvious. As chief executive of Swim Ireland, Keane has spent the last 20 years championing and promoting the sport in Ireland.  A corporate lawyer, she took over a bruised, fractured organisation in the wake of the George Gibney and Derry O’Rourke scandals and has methodically rebuilt public trust as she overhauled its governance and operating structures.  Wiffin’s success, allied to the bronze medal…