Aquilani is not supposed to change the game like Messi or Ronlado do, right now he is the missing link in the team's gameplay. We need a guy to send an accurate pass form mid, but instead we have Seedorf and Emanuelson who can't do that if their lives depended on that.
Our team had a really tough first half, we never had the time to refresh and fix the holes, too many injuries, so Ibra did what he had to do and did a lot of other people's jobs for them, but obviously he is only one guy and against big bus parking teams like Inter and Lazio he will disappear with a weak midfield.
Of course there's a 10% chance that things don't get better and we end up with nothing at the end of February.