I've never once called Quade a "genius".
I've just said that he tries to set up defences to create opportunities.
I thought that was something that all decent playmakers do.
The fact is that if Quade drifts, it doesn't really matter who it is against, only two things can happen:
a) The defenders follow him. Now if that occurs, guess where they are not? The inside.
b) The defenders hold on the inside. Guess where there is then space? On the outside.
Add in the fact that Genia is either fixing the ruck defenders, or exploiting the space if they drift.
Now obviously you need some semblance of front foot ball to do this, because if you are getting tackled when you catch the ball you cannot do anything. But that's going to happen when you straighten too. And if that is occurring you need to deepen to have time to distribute, which lessens the ability to do anything, because the defenders have time to react. But in that case neither straightening, drifting, or setting up defenders will work because they have the time to maintain their line before they have to make a decision.