Genoa coach Gian Piero Gasperini took a swipe at Inter Milan after victory at AC Milan.
Gasperini was sacked by Inter previously in his career.
"My regret is that I was not given the time to work at Inter. The team was put together at the end of the summer and I was only allowed a few games.
"I was judged incompetent by people who were incompetent. I found a lot of incompetence at Inter. I saw some really terrible things here."