The modern lock has become more of a link with the halves (and Des pioneered this at the Dogs). This allows both halves to play wider and play more of a second receiver / five-eighth role. Jake/Radley/Brown/Yeo/Finucane all play a distributor type role. While Jake probably has the best ball skills of that group he is also the least dynamic with his speed and footwork to take the line on to keep them guessing.
With that being the case, I think Schuster would be the ideal 13 going forward. I like Cust and would like to give him more time to develop and having Schuster inside him would potentially hold up the defence giving him more time.
So my ideal 17 next year:
1 Turbo
2 Hoppa
3 Walker (as he's contracted for 2021 then move him on and bring Funa in fulltime)
4 Suli
5 Garrick
6 Cust
7 DCE
8 AFB
9 Fainu
10 Jake
11 Siro
12 Haumole
13 Schuster
14 *Backup hooker (not Levi or Croker)
15 Parker
16 Marty
17 Paseka
Keppie would be first man up, but don't think we need to carry 3 props on the bench when Jake can play 80 if needed.
Parker to become a hybrid edge forward / centre (think Chris Lawrence)
The main issue is hooker. As I said, this is my 'ideal' side, but with Fainu out until at least July, we need a hooker, probably two. I like Levi's effort but he's just not up to it IMO. Maybe look at Peats on a one year deal and look to bring Joey Lussick or Matt Parcell back from the UK to play 14, both who are off contract I believe.