The essence of the Marks article seems to me this:
The move to professionalism in Australian rugby, for many reasons but nonetheless critically, never meant or yielded an comprehensive evolutionary strategy to ensure the quality, growth and organisational health of the code at all its important layers and levels, from the basic community clubs and schools and into the furtherance of a serious coach and coaching development system to build upon the achievements of the prior amateur era.
Instead, and JO'N Mk I was central to this, what was rapidly created in place of many of the best elements of this preceding amateur decade or more, was a central, near-obsessive focus on the seeming 'elite' elements of the code, namely: lots of HQ 'HPU specialists' sitting mostly in HQ, rich salaries for elite players, rich salaries for many more ARU HQ managers, 'Wallabies as kings of the pyramid', 'marketing' investments at elite levels and, particularly, the notion that the historical feeder system of largely amateur coaching and amateur grassroots, club and GPS schools infrastructures could be taken for granted to just 'keep on producing great Wallabies' and is if little else really mattered or was required of these core code-quality building blocks that sat quietly in the background as the new glamour model was to unfold.
The meaning of this is that there was never a true whole-of-code quality and development strategy created for the professional era that would 'enrich (not in money) the roots and build the whole garden' as Marks has so aptly put it above.
Rather, there was the creation of a new elite rugby system and self-isolating strata that would essentially cruise on top of the thus very slowing decaying (but decaying none the less) underlying amateur player and player quality development and coaching infrastructure.
This crucial core strategic deficiency - that was propagated onwards from around 1996 and remains substantially uncorrected today - is absolutely at the heart of the code's travails today.