Rafa Benitez's Inter side have come under fire from Nerazzurri president Massimo Moratti following their 1-0 defeat to AC Milan in the Derby della Madonnina.
A penalty from former Inter striker Zlatan Ibrahimovic in the fifth minute was enough to decide a game which Milan ended with ten men after Ignazio Abate was sent off on the hour mark.
Moratti expressed his dissatisfaction with the performance of the team straight after the final whistle, claiming they never turned up to contest the match.
"I did not like it at all, as we didn't do enough to deserve to win," Moratti said as he left the San Siro. "It seems difficult to move forward playing like this.
"It doesn't seem to me like we suffered against Milan's play. The problem is that we actually didn't play. It's a different thing entirely and much more grave.
"I didn't like anything. One can understand losing a derby, but this time I didn't like the approach or the aftermath. We didn't do enough to think about winning. This won't do at all. It was an ugly game and we did nothing because we became different."
The derby defeat is the treble-winners' first loss at home in Serie A since March 2008 but with Inter six points off top spot Benitez has hinted that he needs new players in the January transfer window to bolster his squad.
"It is obvious that in January we will need something, but for now we need to get a win," Benitez said. "Who could arrive in the next transfer window? All the players expect someone of quality to maintain the level of the side, a side that in the past season won a lot and therefore got tired and has struggled to start again.''