I'm not sure, but I suspect Scott was worried about Bruhn running out the game and that's why Parfitt was on the bench/sub, I think the likely play barring injuries was he may have been subbed out anyway. Injuries obviously took hold but Bruhn looked really good early. Crisp early in the second half was standing him which is a sign of just how much respect Macrae had for Bruhn.
That was the game to be on Daicos in hindsight, if anyone had any questions about how good the kid is, he answered them. He'll get more attention, strange Scott let him run free late in the game, he's nearly in every scoring chain.