Question: What football position did the manager of Tianjin Quanjian previously hold?

full_context: Document 1: Massimo Ambrosini: Massimo Ambrosini (born 29 May 1977 in Pesaro, Marche) is a former Italian professional footballer, who mainly played as a defensive midfielder. At club level, he is mostly known for his successful time at Italian team A.C. Milan, where he spent eighteen years of his career, winning several titles, and even captained the side from 2009 to 2013, following the retirement of Paolo Maldini. Ambrosini retired from professional football in 2014, after a season with Fiorentina. At international level, he represented Italy at the 2000 Summer Olympics, and in two UEFA European Championships, winning a runners-up medal at UEFA Euro 2000.
Document 2: Fabio Capello: Fabio Capello (] ; born 18 June 1946) is an Italian manager and a former professional footballer who is currently the head coach of Jiangsu Suning.
Document 3: Fabio Cannavaro: Fabio Cannavaro, (] ; born 13 September 1973) is an Italian former professional footballer and current manager of Chinese club Tianjin Quanjian.
Document 4: 2009–10 Genoa C.F.C. season: Genoa C.F.C. had a mixed season, in which it struggled to replace world-class striker Diego Milito, who moved on to Internazionale, where he was key in it winning the treble in 2010. Such a player was difficult to find on the market, and his Argentinian replacements Hernán Crespo and Rodrigo Palacio lacked the final punch. Crespo had it in his younger years, of course, but despite four goals in the autumn, he was offloaded to Parma, as Genoa put its faith in David Suazo for the goalscoring. Sergio Floccari also departed, and the Lazio signing scored more goals for the Roman club in half the year than what any player did for Genoa the whole season, while Suazo became a flop. The defence did not perform at expected level either, and even though the team scored several goals by many players, the defensive holes ensured the team did not repeat the fifth position from the year before.
Document 5: Franco Baresi: Franco Baresi (] ; born 8 May 1960) is an Italian football youth team coach and a former player and manager. He mainly played as a sweeper or as a central defender, and spent his entire 20-year career with Serie A club A.C. Milan, captaining the club for 15 seasons. He is considered one of the greatest defenders of all time, and was ranked 19th in World Soccer's list of the 100 greatest players of the twentieth century. He won the Champions League 3 times, as well as 6 Serie A titles, 4 Supercoppa Italiana titles, 2 European Super Cups and 2 Intercontinental Cups.
Document 6: 2008–09 Inter Milan season: After Roberto Mancini's departure, José Mourinho became the new coach of Inter. The Portuguese manager won a trophy at his debut, Supercoppa Italiana, defeating Roma on penalties. He planned a 4–3–3 formation, with the new arrivals Amantino Mancini and Quaresma as wingers beside Zlatan Ibrahimović.
Document 7: Antonio Cabrini: Antonio Cabrini (born 8 October 1957) is an Italian professional football manager, who is currently in charge of Italy women's national, and a former player. He has played left-back, mainly with Juventus. He won the 1982 FIFA World Cup with the Italian national team. Cabrini was nicknamed "Bell'Antonio" ("beautiful Antonio"), because of his popularity as a fascinating and good-looking football player. On the field, his technical, defensive, athletic, and physical qualities made of him one of the best defenders in the history of Italian football, and he is regarded as one of greatest fullbacks of all time. Cabrini is remembered in particular for forming one of the most formidable defensive units of all time with Italy and Juventus, alongside goalkeeper Dino Zoff, as well as defenders Claudio Gentile, and Gaetano Scirea. Cabrini won the Best Young Player Award at the 1978 World Cup, after helping Italy managed a fourth-place finish, and also represented Italy at Euro 1980, once again finishing in fourth place. He is one of the few players to have won all UEFA Club competitions, an achievement he managed with Juventus.
Document 8: 2012–13 Inter Milan season: Inter confined his market to a few of purchases, not being yet ready for a deeper revolution: the most notable arrival was Rodrigo Palacio, from Genoa. For the first three months of 2012–13 season Inter achieved good results, especially in away games. However, during winter times, the side suffered from too absences: Diego Milito and Javier Zanetti - for example - had injuries to long-term. As a result, Inter had to use young players who could not have the requested experience and skills. It was the worst season since 1993–94, as the club finished ninth and failed in qualyfing to European football for 2013–14. On 24 May 2013, Stramaccioni was sacked by the club, with successful former Napoli coach Walter Mazzarri taking over on the next day.
Document 9: Marcello Lippi: Marcello Lippi, (] ; born 12 April 1948) is an Italian former professional football player and current manager of the China national team. He served as Italian national team head coach from 16 July 2004 to 12 July 2006 and led Italy to win the 2006 FIFA World Cup. He was re-appointed as Italian national team head coach in the summer of 2008 and was succeeded by Cesare Prandelli after the disappointing performance in the 2010 FIFA World Cup.
Document 10: 2002–03 Udinese Calcio season: Udinese Calcio bounced back from the hugely disappointing 2001–02 Serie A season, in which it only just managed to avoid relegation. Under new coach Luciano Spalletti, Udinese gathered strength, and was a constant feature on the top half of the league table. Even though the squad lacked the goalscoring punch, the defence led by Néstor Sensini and surprising goalkeeper Morgan De Sanctis held it together to such a degree it finished sixth in the league. Also Czech signing Marek Jankulovski impressed, the Napoli signing switching form left-wing to left back, causing interest from several bigger clubs. In the offence, Udinese's most influential player was David Pizarro, who scored seven times from the midfield and grabbed the attention from Lazio, who tried to sign him and teammate Martin Jørgensen immediately after the season had finished. Undisclosed Lazio players refused moving to Udine as compensation for the transfers, and both stayed on, much to the relief of Spalletti.
Document 11: 2004–05 FC Porto season: FC Porto followed up its UEFA Champions League victory with a chaotic season, following the departure of coach José Mourinho and several key players. Initial coach Luigi Delneri was sacked even before the season started, due to too little presence in his new town in pre-season. New signings Ricardo Quaresma, Pepe, Giourkas Seitaridis, Luís Fabiano, Raul Meireles and Diego looked spectacular on paper, but in reality, Porto had a miserable offensive performance, culminating in just 39 league goals and a loss of the league title to arch rivals Benfica. As a consolation, it won the Intercontinental Cup title with a victory against Once Caldas on penalties.
Document 12: 2006–07 ACF Fiorentina season: ACF Fiorentina had a fantastic season points-wise, scoring just a couple of points less than second-positioned Roma, but due a 15-point penalty because of the club's involvement in the Calciopoli scandal, it missed out on the Champions League, and had to settle for 6th and a position in the 2007–08 UEFA Cup. New signing Adrian Mutu was able to compensate for Luca Toni not having such a spectacular season as the one before, and both players netted 16 goals. Goalkeeper Sébastien Frey also had a top-class season, conceding only 31 goals all year, despite having a defensive line without renowned stoppers.
Document 13: 1997–98 A.S. Roma season: Associazione Sportiva Roma was reinvigorated under new coach Zdeněk Zeman, who recently had been coaching arch rivals Lazio. Zeman brought his attacking 4–3–3 with him, resulting in Roma scoring 67 goals, but also conceding 42, an extreme rarity in defensive-minded Italian football. Roma finished fourth, three places above Lazio in the table. That was the first time it had happened in five years, which delighted the Roma board, and Zeman stayed on for a further season. The season also saw the international breakthrough of former youth-team product Francesco Totti, who at 21 was ready for increased responsibility and captaincy, responding with 13 league goals from a position on the left-wing of the attack. Also noticeable was new signing Cafu's offensive skills as a right-wing back, granting him a reputation among the world's top wing backs.
Document 14: Paolo Maldini: Paolo Cesare Maldini (] ; born 26 June 1968) is an Italian former professional footballer who played as a left back and central defender for A.C. Milan and the Italy national team. He spent all 25 seasons of his career in the Serie A with Milan, before retiring at the age of 41 in 2009. He won 23 trophies with Milan while in the squad: the UEFA Champions League five times, seven Serie A titles, one Coppa Italia, three Supercoppa Italiana titles, four European Super Cups, two Intercontinental Cups and one FIFA Club World Cup.
Document 15: 2002–03 Parma A.C. season: Parma Associazione Calcio regained its respect following a lacklustre Serie A and Champions League performance the year before. Under new coach Cesare Prandelli, Parma played an offensive 4–3–3 formation, in which new offensive signings Adrian Mutu and Adriano starred. Both made up for the departure of Marco Di Vaio to Juventus. Mutu scored 18 goals from the left wing, and Parma accepted a multimillion-pound offer from Chelsea in the summer, which meant the Romanian international only spent a year at the club. Also impressing were goalkeeper Sébastien Frey and young centre-halves Matteo Ferrari and Daniele Bonera, who proved to be acceptable replacements for departed captain Fabio Cannavaro, who had joined Inter in late August 2002.
ground_truth: captain