Balotelli is being attacked by Italy's football establishment after lashing out at Sky Italia pundits on Friday.
Marocchi said: "We often try to talk about football, watch and comment on the games. But when a performance is bad, it's bad, so the questions have to be asked.
"Balotelli is a big problem for Milan and will be for the Nazionale too. I would've liked him to reply by telling me he does move off the ball, but instead he chose an insult. Those close to him ought to show Balotelli how other forwards really move. He should have the humility to do that.
"He thinks that with four goals he has suddenly resolved all his problems. I am above all sorry for his teammates. Balotelli played badly, that's the issue here. He has to understand he's got to do more for his teammates."