This idea that one game plan is best in the long-run doesn't sit with me. There is no one perfect game plan.
The best game plans revolve around the strengths of the players you have, and while you can change the players it takes long time to turn over a list and there is no guarantee you will get the right ones in the end.
Structure is quite easy to change, it can simply be a case of telling player to start in a certain position at a centre bounce. Bombing the ball long to the forward line is fine, but if you allow the opposition to have a loose player back it is dumb.
We didn't have the right structures to allow us to play to the conditions, plus Jones tagging Mitchell meant Petracca spent too long in the middle which robbed us of another target in the forward line.