For those criticising the PNG and Victorian track record of producing NRL talent, we need to remember that producing players requires pathways and structures below the NRL, those pathways and structures require investment and PNG and Victoria only now are receiving those funds after all these decades. Hell, even NZ only these last couple of years have received funding to put structure in below the Warriors.
The NRL are doing the right things now to produce more players in the future. PNG will be a reasonable source of players, Victoria and WA will probably always be a small source, but we can build them up to about 10% of the NRL player base quite easily (which is what NSW and QLD do for AFL, about 10% of its players).