 He was appointed managing director in 1979.Corrigan formed a partnership with Peter Scanlon, a former Elders Limited executive, in 1990 when he set up an investment and management services business that first became the Lang Corporation and later stevedore company Patrick Corporation.Corrigan is best known for the 1998 Australian waterfront dispute, in which he attempted to sack the heavily unionised workforce and replace it with strikebreakers, eventually leading to reform and restructuring of dockyard labour practices.