Surely a lot of that has to do with the players though. How can you compare:
9 Gregan vs Genia
10 Larkham vs Cooper
11 Mitchell vs Roff
12 Giteau vs Horan
13 Horne vs Herbert
14 JOC (James O'Connor) vs Tune
15 AAC (Adam Ashley-Cooper) vs Burke
None of the players on the left are a patch on the ones on the right. IMO only Genia has the potential to match or compete with Gregan, but he isn't there yet. I also hope that Cooper will one day be mentioned in the same sentence as Larkham. As for the rest, they are not only smaller and less tough, but also somewhat lacking in basic skills.
To an extent, yes it is about the players. But passing is a basic skill, so is running into space. If these blokes can't do a simple thing like catch then what hope do we have? Of the players above, I expect Genia to surpass George as a pure halfback, Cooper could well end up as good as Larkham and Giteau has the raw talent of Horan.
Let's not forget that many of these guys weren't instant superstars when they came into the test team. Bernie wasn't even playing 5/8 to begin with. They were polished by excellent coaching and a game plan that fully utilised their talents.
For the last decade (or maybe even more), the quality of passing in our backline has been IMHO poor. That also includes backlines with some of the aforementioned superstars.