As a manager, Riedl coached Olympique Khouribga (Morocco, 1993–94), Al-Zamalek (Egypt, 1994–95), Al Salmiya (Kuwait, 2001–03), and many national teams, including Austria (1990–92), Liechtenstein (1997–98), Palestine (2004–05), Vietnam (1998–2001, 2003–04, 2005–07), and Laos (2009–10). In the 2007 AFC Asian Cup, he coached Vietnam to a 2–0 victory over UAE and help the team to get to the quarterfinal for the first time in history. Unfortunately, in late 2007, after the team's disappointing performance in the SEA Games 2007 competition, he was fired and replaced by the Portuguese coach Henrique Calisto. In October 2008, he returned to Vietnam to coach Hải Phòng. However, after only three matches with poor performance, he was dismissed.[4] On 9 July 2009, he signed a contract as head coach of Laos, the contract was for two years.[5]
After a return to Laos as technical director and Belgian club Visé as head of youth development, Riedl was reappointed as Indonesia national team head coach in December 2013, signing a three-year contract.[11][12][13][14] His contract was terminated by mutual consent at the end of 2014, after Indonesia failed to qualify for the knockout stages of the 2014 AFF Suzuki Cup.[15] Riedl then accepted the head coach job of PSM Makassar in early 2015, but resigned in April the same year before the league even started.[16]
Rield returned as the head coach of Indonesia in 2016 on a one-year contract, and guided Indonesia to the finals of 2016 AFF Suzuki Cup. After Indonesia lost to Thailand 3–2 on aggregate in the finals, his contract was not renewed by PSSI.[17][18]
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