Bologna coach Pippo Inzaghi was furious after their 2-0 defeat to Cagliari.
It marked Cagliari's first home win of the season.
“I did not like the attitude," Inzaghi told Sky Sport Italia.
“We were coming off two good wins and were meant to give a sense of consistency. We conceded at the first attempt and lacked conviction in our finishing once we got to the edge of the box.
“I am particularly irritated by the first goal, as the defence was in position and we still allowed Joao Pedro a free header. It was unacceptable to concede a goal like that.
“On the second, Lucas Castro put in a fantastic cross off the outside of the boot."