 Complete the following phrase:  In 1987, Maifredi was appointed as manager of Serie B side Bologna, under the clubs president Luigi Corioni. During his three seasons with Bologna, his attacking style of play proved to be highly effective; after joining the team, he helped the club win the Serie B title and achieve promotion to Serie A in his first season, and later helped the team avoid relegation in his second season, and subsequently qualify for the UEFA Cup in 