Question: What position did the former manager of Lee Young-pyo play?

full_context: Document 1: Martin Jørgensen: Lars Martin Jørgensen (born 6 October 1975), more commonly known as Martin Jørgensen, is a Danish former professional football player, who last played for Danish club AGF Aarhus as a midfielder or defender. He is currently working as talent manager for AGF.
Document 2: Marc Overmars: Marc Overmars (] , born 29 March 1973) is a Dutch former footballer and the current director of football at Ajax. During his footballing career, he played as a winger and was renowned for his speed and technical skills.
Document 3: Nigel de Jong: Nigel de Jong (] ; born 30 November 1984) is a Dutch professional footballer who plays as a defensive midfielder for Turkish club Galatasaray and the Netherlands national team. He joined the Ajax youth academy as a youngster and worked his way through the ranks to make the first team at age 17. Two years later, in 2004, he made his international debut. Additionally, in 2010 he won a World Cup runners-up medal.
Document 4: Martin Ødegaard: Martin Ødegaard (] ; born 17 December 1998) is a Norwegian professional footballer who plays as an attacking midfielder for Dutch club SC Heerenveen, on loan from Real Madrid, and the Norway national team.
Document 5: Kim Yong-dae: Kim Yong-dae (born 11 October 1979) is a South Korean football goalkeeper who plays for the K League Classic club Ulsan Hyundai. Despite not playing for South Korea since 2008, he is considered one of South Korea's best goalkeepers even to the point where he has been nicknamed by fans as "Yong Der Sar" in reference to former Dutch goalkeeper Edwin van der Sar of Manchester United and the Netherlands.
Document 6: Lee Young-pyo: Lee Young-pyo (Korean: 이영표 ; ] ; born 23 April 1977) is a retired South Korean footballer. Lee was recognized for his speed and dribbling skills. His former manager Martin Jol once called him "the best left-back in Holland".
Document 7: Dennis Bergkamp: Dennis Nicolaas Maria Bergkamp (] ; born 10 May 1969) is a former Dutch professional footballer, who is the assistant manager at Ajax. Originally a wide midfielder, Bergkamp was moved to main striker and then to second striker, where he remained throughout his playing career. Bergkamp has been described by Jan Mulder as having "the finest technique" of any Dutch international and a "dream for a striker" by teammate Thierry Henry.
Document 8: Cha Bum-kun: Cha Bum-kun (; ] or ] ] ; born 22 May 1953) is a South Korean football manager and former player, nicknamed Tscha Bum in Germany ("Cha Boom") because of his name and his thunderous ball striking ability. The nickname was first used by the German Kicker Magazine, which also named Cha as one of the greatest footballers of the 1980s. Cha was born in Hwaseong in the South Korean province of Gyeonggi. By 1972 he had been capped by the Korean national team as the youngest player in history called up to the squad. After developing into the top player in his country, Cha wanted to play in Germany's Bundesliga. Cha promised to learn skills in Germany and help Korea advance in football. He eventually rose to international stardom and fulfilled his promise by coming back to South Korea after his retirement and starting youth football clinics. He coached the national team in the 1998 FIFA World Cup and also Ulsan Hyundai and Suwon Samsung Bluewings of the K League. In South Korea, Cha is greatly respected for his accomplishments in the Bundesliga and the South Korean national team. During his career, Cha has played for SV Darmstadt 98, Eintracht Frankfurt and Bayer 04 Leverkusen, and represented his national side 135 times, scoring 58 goals. He was given the title "Asia's Player of the Century" by the International Federation of Football History and Statistics. He is the all-time leading goal scorer for the South Korean national team.
Document 9: Seo Jung-won: Seo Jung-Won (born December 17, 1970 in Gwangju, South Korea) is a football player and coach from South Korea. Nicknamed "nalssen dori" (speedy Gonzales-equivalent in Korean) in his native Korea, he was even offered a contract from Barcelona in his early twenties which he turned down. As of 2006, he played forward and midfielder for Ried, a club in the Austrian Bundesliga. Seo moved to Ried from Austria Salzburg in June 2005.
Document 10: Bert van Marwijk: Lambertus "Bert" van Marwijk (] , "surname isolated": ] ; born 19 May 1952) is a Dutch football manager who last coached Saudi Arabia national team. As a footballer, he played for the Go Ahead Eagles, AZ, MVV and Fortuna Sittard amongst other clubs, and represented the Netherlands once.
Document 11: Memphis Depay: Memphis Depay (] ; born 13 February 1994), commonly known simply as Memphis, is a Dutch professional footballer who plays as a winger for French club Lyon and the Netherlands national team. Depay was named the "Best Young Player" in the world in 2015 by "France Football". Depay is widely considered to be one of the brightest young talents in European football and the most exciting young player to emerge from the Eredivisie since compatriot Arjen Robben. Depay is known for his ability to cut inside, dribbling, distance shooting and ability to play the ball off the ground. His playing style has earned him acclaim, with fans, media and former players drawing comparison to Portuguese forward Cristiano Ronaldo, who believes "Memphis is one of the best young players in the world", while Louis van Gaal, Ronald Koeman, Guus Hiddink, Arjen Robben, Marco van Basten and Wayne Rooney have stated "he will be the best in the world".
Document 12: Son Heung-min: Son Heung-min (Hangul: 손흥민 ; Hanja: 孫興慜 ; ] ; born 8 July 1992) is a South Korean professional footballer who plays as a winger or a forward for Premier League club Tottenham Hotspur and the South Korea national team.
Document 13: Chun Young-soo: Chun Young-soo (Korean: 전영수; born February 19, 1963 in South Korea) is a former South Korean footballer who plays as a Forward.
Document 14: Johan Neeskens: Johannes Jacobus "Johan" Neeskens (] ; born 15 September 1951) is a Dutch football manager and former midfielder. As a player, he was an important member of the Dutch national team that finished as runners-up in the 1974 and 1978 FIFA World Cups and is considered to be one of the greatest Dutch midfielders of all time. In 2004, he was named one of the 125 Greatest Living Footballers at a FIFA Awards Ceremony., while in 2017 he has been included in the "FourFourTwo" list of the 100 all-time greatest players, at the 64th position.
Document 15: Martin Jol: Maarten Cornelis "Martin" Jol (born 16 January 1956) is a Dutch football manager and former midfielder.
ground_truth: midfielder