While the mainstream punditry consensus pushes for a smaller replacements bench, Schalk Burger is arguing the opposite — and his reasoning centres on World Rugby's Instrumented Mouthguard technology. The iMGs, which flash red and trigger mandatory HIAs when sensors detect high-impact head contact, caused repeated stoppages across the November Nations Championship opening weekend, with six players pulled across the Boks-Italy and Ireland-Argentina matches alone. Burger's issue isn't with player safety as a priority — it's with what he sees as a faulty algorithm generating false positives and creating significant match disruption for impacts players themselves aren't feeling. His conclusion: 23-man matchday squads are already inadequate under this protocol, and World Rugby will eventually be forced to expand to 25. Shimange adds another layer, noting teams will need to actively train for random mid-session pull-offs just to prepare for the operational reality of the technology.