OSR, I think you will find that all the CAS schools use a level of recruitment, except Aloys, and same for the GPS, maybe not View.
However recruitment alone doesn’t guarantee winning, the Rugby DNA of some schools is just stronger, best example Joeys.
I applaud the ISA schools for their approach but remember the catchments of some schools like Auggies and Oakhill is way larger than any of the GPS or CAS schools, so you would expect strong depth. Also, I would suggest these 2 ISA schools also have strong Rugby/League DNA.
It will be interesting to see what the post-mortem delivers. You would like to think an agreement is reached to have all “like” teams play each other, just like they do in their respective comps.