Socceroos assistant Mark van Bommel will join Dutch champions PSV Eindhoven as coach after the World Cup.
Phillip Cocu, having led PSV in May to the domestic championship, is leaving for Turkish side Fenerbahce.
Former PSV and Bayern Munich midfielder van Bommel is the son-in-law of Australia's interim Dutch coach Bert van Marwijk. The 41-year-old has signed a three-year deal.
Australia drew 1-1 with Denmark on Thursday to maintain hope of reaching the World Cup last 16.
Van Bommel will start his new role once he returns from the World Cup.
"I think I have the experience to meet this new challenge," Van Bommel, who previously worked as a youth coach at PSV for two years, said in a statement.
Van Bommel, capped 79 times by Australia, spent six years with PSV as a player before going abroad to have spells with Barcelona, Bayern Munich and AC Milan.
He returned in 2012 to the Dutch side before announcing his retirement from professional football at the end of the season.
Fenerbahce have appointed Cocu for three years after parting ways earlier this week with Aykut Kocaman.
"I have to say I am very impressed with the club's plans for the near future," Cocu said.
Fenerbahce, under new ownership after two decades, ended Kocaman's contract on Monday after one season.
Cocu led PSV to their 24th Eredivisie title this year, outlasting rivals Ajax Amsterdam to win their third championship in four years.