With Wiese entrenched as the first-choice No.8, the real contest is for the back-up role — and the Scotland Test gave both Roos and Louw 38-42 minutes each to make their case. The stat breakdown shows remarkably little separating them on paper (both scored tries, both made efficient carry and tackle numbers), which means the distinction comes down to profile and fit. Roos replicates Wiese's power-carrying game but is built for the Stormers' expansive system; translating that consistently into the Boks' more structured Test environment remains his challenge. Louw's value is positional flexibility and a defensive work-rate that maps neatly onto what Erasmus selects for — he covers the back row and can fill lineout emergencies off the bench. Duane Vermeulen's observation that Roos thrives in a freer system cuts to the heart of it: raw ability isn't the question, adaptability is. The piece argues the debate is far from resolved, with Louw's utility edge likely keeping him ahead for now.