 Complete the following phrase:  On 2 February 1964, Atalanta lost 71 at home against Fiorentina; this was the clubs worst ever home defeat. This result outraged the fans, requiring police intervention to prevent violence between them and the players. Quarios tactical choices were also questioned, causing him to be sacked after the match and replaced by Carlo Ceseroli. The club would eventually finish in the middle of the standings, but the season was marred by Turanis death on 25 April 1964. Attilio Vincentini, who was nominated by ex-coach Luigi Tentorio, replaced him as president that summer. Tentorio left club management and the world of football altogether in 1966 when all football clubs were made into joint-stock companies, for he fundamentally disagreed with this idea. Later in the 1960s, Atalanta participated in a few continental though not UEFA competitions: the Intertoto Cup then also known as the Coppa Piano Karl Rappan in 196667 and the Mitropa Cup in 196768 and 196869. The 