FA Cup. He became the first man to win the AFC Champions League as both player and manager. However, the team's performance declined in the 2012 season, aggravated by the death of Sun Myung Moon, the founder of the Unification Church which owned the club, in the middle of the season. He eventually resigned from Seongnam after finishing the season. South Korea In August 2014, he became the assistant coach of the South Korea national team. Under Shin, South Korea reached the Asian Cup final for the first time in 27 years. South Korea's manager at that time was Uli Stielike, but the actual coaching role was performed by Shin, who took charge of the tactics and training of the team. Shin also managed the South Korea under-23 team at the same time and participated in the 2016 Summer Olympics. South Korea won their group by acquiring 7 points against Germany, Mexico, and Fiji, but they were surprisingly elimininated by Honduras in the quarter-finals. On 22 November 2016, Shin was appointed manager of the South Korea under-20 team to prepare for the 2017 FIFA U-20 World Cup on home soil. Therefore, he left the senior team to concentrate on the under-20 team. At the World Cup, South Korea finished second in their group with 6 points and advanced to the knockout stage, but lost to Portugal in the round of 16. After Shin left the South Korean senior team, Stielike made poor results in qualifiers of the 2018 FIFA World Cup and was eventually fired by the Korea Football Association. On 4 July 2017, Shin became the manager of the senior team to replace Stielike. In December, he won the 2017 EAFF E-1 Football Championship, beating arch-rivals Japan in the final fixture 4-1. Despite two goalless draws, South Korea under Shin also obtained qualification to the 2018 FIFA World Cup in Russia. They were drawn in the same group against Sweden, Mexico and defending champions Germany. South Korea lost 0–1 to Sweden and 1–2 to Mexico, but surprised everyone by defeating Germany 2–0. Indonesia On 28 December 2019, the Football Association of Indonesia (PSSI) confirmed the appointment of Shin as the Indonesian national team's manager, replacing Simon McMenemy. He was handed a 4-year contract. After a bad start to his tenure in the second round of 2022 World Cup qualification, he led Indonesia with an average squad age of 23.8