Melbourne Rebels have appointed Tony McGahan as their head coach for the 2014 and 2015 seasons, replacing the outgoing Damien Hill on August 1.
After leaving Australia in 2005, McGahan had success in Japan and then spent seven years at Irish province Munster between 2005 and 2011.
As defence coach and later director of rugby, he was part of two Heineken Cup titles and two Celtic League titles. He also coached Munster to their historic 15-6 victory over the Wallabies in 2010.
In 2012, McGahan was appointed to the role of Wallabies coaching coordinator.
"These decisions are never easy, and will always lead to some disappointment," said Melbourne Rebels chief executive, Rob Clarke.
"However, an extensive review process was undertaken and the Board endorsed the Coaching Review Panel's recommendation. As part of the process the panel considered applications from sixteen coaches from Australia and overseas."
Clarke highlighted McGahan's successful international credentials at the top level in Europe and here in Australia with the Wallabies, his extensive experience as a defence coach and strong leadership style as important attributes in his appointment.
"Tony comes to Melbourne highly regarded as an international coach with a record of success at the top level. In particular, his time at Munster was a memorable period for the famous club, with multiple titles in the Heineken Cup and Celtic League (now PRO12)."