don't we have that young 5/8th brother of Warriors player??? - apparently about 18 or so from memory?
Maybe he can be moulded into a Fullback (which has less pressure on them to play make whilst developing). I know this is moving chess pieces, but the ability to move there for 2027 or 2028, build combinations with Walsh/Mamm etc would be good. If Mamm does not improve, then he can be moved into the halves as needed.
The constant would be Walsh, who the team will be mounded around for years to come.
Just a thought
DP