[11] In August 2002, Park was appointed as manager of the South Korean side for the 2002 Asian Games by performing successfully as the senior team assistant.
[12] However, Korea Football Association (KFA) hadn't done any preparation for the 2002 Asian Games since there was no manager or coaching staff for 2 years.
KFA had focused on the 2002 FIFA World Cup, which was co-hosted in South Korea, so Park had to prepare for the tournament in 2 months.
[15] Gyeongnam finished fourth in the 2007 K League season, but Park left the team due to internal conflict.
[25] At the 2018 Asian Games, his side also advanced to the semi-finals and finished fourth for the first time in 56 years,[26] with Park earning praise for his management.
[27] On 15 December 2018, the Vietnamese team under Park won the AFF Championship after defeating Malaysia, 3–2 on aggregate, in the second leg of the finals in Mỹ Đình National Stadium of Hanoi.
[34] In June 2021, for the second round of 2022 FIFA World Cup qualification, Vietnam was drawn in the same group as Thailand, Malaysia, Indonesia and the United Arab Emirates.
[35] In the third round of the World Cup qualification, Vietnam earned 4 points by achieving a 3–1 victory to China and a 1–1 draw with Japan, although they lost eight out of ten matches.
[41] In December 2022, he also got the Heungin Medal, the second-class Order of Diplomatic Service Merit, due to his contribution to the relationship between South Korea and Vietnam.
These managers include Guus Hiddink, Ján Kocian, Sven-Göran Eriksson, Antoine Hey, Simon McMenemy, Sirisak Yodyardthai, Alexandre Gama and Bert van Marwijk.