a traditional man-marking defensive back-line, as well as a sweeper. He was also condemned for leaving Gianfranco Zola out of the squad, and for his reluctance to field creative forwards Roberto Baggio and Alessandro Del Piero alongside each other in the front-line, opting instead to have one player come on for the other in the second half; these controversial substitutions were compared to those made between Sandro Mazzola and Gianni Rivera by Ferruccio Valcareggi, the Italian manager at the 1970 World Cup. Milan return and 2002 World Cup with Paraguay After serving as a head scout for his former team Milan from February 1999, Maldini briefly returned to coach the Milan first team in March 2001, serving as an interim manager for the club (whose captain was his son, Paolo) alongside youth coach Mauro Tassotti, following Alberto Zaccheroni's sacking, and led the squad for their final games of the season. Although the club endured a disappointing season, finishing in sixth place and failing to qualify for the Champions League, Maldini did lead the team to a memorable 6–0 victory over cross-city rivals Inter in the Milan Derby on 11 May; the result was Inter's worst-ever home defeat in Serie A, and Milan's biggest league win in the Derby. After helping the club to qualify for the UEFA Cup, Maldini was replaced by Fatih Terim the following season, although he initially remained with the club as an advisor to the coach. In January 2002, Maldini became coach of Paraguay. His appointment caused some controversy as domestic managers were overlooked (prompting the managers union to try to unsuccessfully expel him for immigration breaches), and because he spoke little Spanish. Maldini nonetheless had the support of star goalkeeper José Luis Chilavert and several other senior players. He took over the team which had already qualified for the 2002 World Cup hosted by South Korea and Japan; at the age of 70, he became, what was at the time, the oldest coach to ever be in charge of a national side at a World Cup tournament (his son Paolo captained Italy in the same tournament); this record was later broken by Greece's coach Otto Rehhagel in the 2010 World Cup. Despite missing Chilavert for the first game due to suspension, Paraguay managed to advance from Group B to the Round of 16, after a 2–2 draw with South Africa, a 3–1 defeat from Spain,