I think Miller played well in his debut too and that's another option as a KPP. Another way to experiment with a move of Balta. We have a good choice of KPD types and a good choice of ruck/KPFs. Tarrant and Balta Soldo are the most experienced. Miller, Ryan only just debuted. Gibcus looks ready to go 2022. In the past 5 years we have used 1 or 2 KPDs and had Broad and Grimes play tall.I think the hidden advantage of Biggie coming on (if he does) is that if he can step up and hopefully also with Gibcus coming through whilst Tarrant is on the list we can use Balta as a swingman and potentially a key forward. I have no doubt he can play forward, the only question is whether he is more value to us as a back.
Balta has the athleticism and skills to play around wing area too. He can run, mark and kick real long.