Not many people walk away from a senior role at the world’s leading rugby club, but Dubliner Allan Ryan had his reasons for leaving Toulouse on July 1, days after celebrating a record-equalling fourth Top 14 title in a row with luminaries like Antoine Dupont. Ryan had been director of performance at Stade Toulousain, to give the club founded in 1907 its name in French. It was a high-pressure role requiring intense collaboration with coaches, players, and medical staff in running the strength and conditioning (S&C) programme throughout the club. At the end-of-season gathering, where yet another Bouclier de Brennus…