Fitzgerald became Munster's CEO in 1999 and was a driving force behind the province becoming a European powerhouse. He was at the helm for some of the greatest days in the province's history, including their coveted first Heineken Cup success in 2006, followed by a second triumph in 2008, as well as three league triumphs in 2002–03, 2008–09 and 2010–11. He also oversaw the redevelopment of both Thomond Park and Musgrave Park, and the consolidation of Munster's training bases in Cork and Limerick into one base at the University of Limerick.