The thing that stood out in that package was the number of times at centrebounces our ruckman got the hitout to space and it was the opposition that was first to react and gain the easy centre clearance.
No mention either as part of our defensive (and offensive) strategy that our smalls/mids need to be front and square (sweepers) at contests. We're relying too much at the moment on individual efforts (eg: contested marks by our talls) rather than working together as a unit.