Torino have sacked coach Walter Novellino despite a vote of confidence and have replaced him with Gianni De Biasi.
Novellino received boardroom backing following Sunday's 3-0 defeat at Genoa, but matters came to a head after protesting fans booed the players during a training session on Tuesday.
That prompted the decision to postpone Wednesday morning's training session and Torino President Urbano Cairo took even stronger action later on Tuesday when dismissing Novellino.
The 54-year-old former Sampdoria coach had been in charge of the seven-times Italian champions since the summer.
Novellino's immediate predecessor, De Biasi, now returns to the Granata helm for a third time, having parted company with Spanish club Levante to accept the post.
De Biasi has signed a contract until the season's end with an option for a second season if Torino - presently 14th in Serie A, four points above the relegation places - avoid relegation.
"Having worked with him when he led us to promotion and for 14 games last season we know De Biasi's qualities well," Cairo said. "He is a very reliable person and a great motivator."
De Biasi led the Turin club to promotion in 2006, then helped to secure their top-flight status when he resumed control between February and May last year.
He was, however, unable to improve Levante's ranking in Spain after his arrival last October: the Valencia-based team sit bottom of the Primera Division.