Leão has been a manager since 1987. He was São Paulo manager in 2005, winning the Campeonato Paulista of that year. He then moved to Vissel Kobe of Japan, where he stayed for only four matches. On 18 July 2005, he became the manager of Palmeiras, a position he held until March 2006. His peak as a manager was his second period at Santos, between 2002 and 2004, when he won the Campeonato Brasileiro in 2002, and was runner-up in both Copa Libertadores de América and Campeonato Brasileiro in 2003. Leão is often seen as a hardliner, since he demands perfect physical shape of his players, along with discipline and mutual respect. He is not fond of having well-known players on his teams, since he believes that this might cause relationship problems within the squad. He was the manager of the Brazil nation team from 15 November 2000 until 9 June 2001. From 11 matches, his Brazil side won 4, drew 4 and lost 3. Like his predecessor Vanderlei Luxemburgo, he struggled having top players available for qualifying matches. He tried to centre the squad around Romário and younger players with little international experience. He also became the first sitting coach to travel to Europe to assess his players' activities there, where he was asked by the Europeans to not release Rivaldo and Roberto Carlos for matches that were not crucial. Leão was dismissed by Atlético Mineiro on 4 May 2009 following a defeat to arch-rivals Cruzeiro in the final of a regional championship. This ended his third stint as Atlético head coach. On 3 June 2009, Sport Recife's have signed the coach for the up-coming 2009 Brasileirão championship. On 26 April 2010, Leão was named as the new manager of Goiás. On 24 October 2011, São Paulo announced it had hired Leão for a second managerial spell in charge of the club. On 30 August 2012, after two months unattached, Leão was hired by São Caetano, then participating in Série B.
Controversies
Leão is known for his controversial attitudes and declarations. In 1997, after a game between his Atlético Mineiro and Argentine side Lanús in the Conmebol Cup final, Leão was involved in a massive fight with adversaries. Leão had to rebuild his face after the incident. In 2002, when he coached Santos, and Peixe faced Paysandu, Leão was involved again in a fight. This time, when his players faced policemen, the coach received an aggression in his eyes by a pepper spray. In 2006, then coaching Palmeiras, Leão had problems with television pundit Milton Neves, that had kicked another television pundit, Sílvio Luiz, according to Leão. Leão said to Neves: "When you kicked Silvio Luiz's ass, a 70-year-old man, you boasted. Come to kick mine!" In 2010, training Goiás, Leão discussed again with two another television pundits, Renata Fan and Neto. According to Leão, Neto "would not have psychological conditions to speak in a television channel". But the problems between them would happen since 1989, when Leão coached Neto in Palmeiras. In 2013, in research made for sportive site UOL Esporte, Leão was elected the worst coach from Brazil. He had 16 votes. Celso Roth was chosen the second one. Again in 2013, Leão said that Juvenal Juvêncio, president of São Paulo, club that he coached for two times, should abdicate, for his age, of his position, making like pope Benedict XVI. Juvêncio answered to Leão, saying that the coach "needs to find another job soon".
