World Cup debutant Curaao parted ways with coach Fred Rutten on Monday amid reports Dutch veteran Dick Advocaat is returning to the team he led through qualifying. The uncertainty around the smallest nation by population ever to qualify for a mens World Cup comes less than five weeks before a testing opening game against Germany in Houston. Rutten took the job in February after the 78-year-old Advocaat stepped down citing his daughters health issues. Under Rutten, the team lost two warmup games in March against Australia and China, both in Australia with players reportedly wanting Advocaat back. "I regret how things unfolded but I wish everyone the best," Rutten said in a statement posted by the Curaao soccer federation. Rutten previously coached Dutch clubs Twente, PSV Eindhoven and Feyenoord, and Schalke in Germany. The federation is expected to hold a news conference on Tuesday. Curaao is joined by Ghana, Morocco and Saudi Arabia in changing coaches since the World Cup draw in December. Curaao is an autonomous territory of about 156,000 people in the Caribbean within the Netherlands kingdom. The team relies almost entirely on players born and raised in the Netherlands. The Associated Press contributed to this report.