Dan Biggar's read on the Greatest Rivalry series cuts to an uncomfortable truth for All Blacks fans: the very thing that's made Rennie's side exciting — sustained phases, multiple playmakers, patient ball retention — maps almost perfectly onto what the Springbok defensive system is built to exploit. The Boks want the ball back quickly; the All Blacks don't want to give it back. Biggar argues that tension is the central tactical question of the series. His reference point is Scotland's Nations Championship loss, where a similar ball-in-hand approach briefly troubled the Boks before the Springbok physicality ground it down 42-28. His conclusion is that unless New Zealand can win enough collisions to move the Bok pack around — creating the space their backline needs — all those phases will simply feed the Springbok counter-attack machine. He still backs the Boks, but acknowledges this All Blacks team will test them differently to recent opponents.