you'd have corner forwards who's sole job on kickouts would be to disrupt a midfielders run to stop a mark. You can't have a successful mark (although I don't know how effective it will be anyway) if you are going to engineer a situation where there's 12 bodies in and around the 45
And condense everything and everybody into the middle third? As Paul Mc would say ... Let It Be ...
I'd love to see this get passed by the blanket defence merchants.
Interesting in that article about trailing a match were they tried to limit number of handpasses , error rate of 67% , that's huge but not surprising .
Small correction: kick outs following a score were from 20 metre line (21 yards in old money) not the 13 metre line.