My argument is that we went through the Penteopic Army, Army21, Hardened Networked Army and now Plan Beersheba and the actual scale of equipment is not much different from what was it was meant to be on paper since the late 50s. Terminology and org charts have changed but not the scale of equipment, which, if anything, has been cut back as older kits is retired or replaced.
This is wrong. Each one of those reorganisations, plus others, lead to changes in equipment levels. The Pentropic organisation came in at the end of national service, when the money that was being spent on the Nashos was used to equip the division. That's where the money for the M113s, M2 howitzers, L5 pack howitzers etc came from. When the army was reorganised back into a tropical establishment division in 1964, it was decided that the division needed to be air portable. So money was spent buying the Caribous, the C130Es and new helicopters, among many other things.
Raven, you seem to alternate between saying money is being wasted on shipbuilding etc. to the detriment of the army, particularly in terms of the possible effect of the army's modernisation, to defending perceived cuts in numbers and capabilities, when numbers are questioned. You have stated that combat power is critical for the CFV and AIFV because we don't have more tanks and that more tanks would be desirable, yet when it is put forward the we have had only one regiment worth of tanks (often less) since the 50s and more tanks would be justified you appear to disagree. Which is it?
I agree we need more tanks, and many other things. Where I disagree is the reason why. We don't need more tanks now because our Army happened to have more tanks in the inventory in the 50's. We also don't need tanks because a line diagram for a division I saw once said there should be a regiment per brigade. If you are going to talk about equipment numbers, orbats etc, it actually has to be based on real analysis. Simply saying 'traditionally a division has a regiment per brigade' or 'we had over 100 centurions back in the day, we only have 59 tanks now, therefore we need more tanks' is irrelevant. It's the sort of analysis you would expect from the Herald Sun.
The orbats of old are as valid (or invalid) as those of today as is the fact they often were never achieved.
I disagree. Things change. What might have been a valid orbat in 1950 isn't going to be a valid orbat today. For example, the Pentropic organisation came about due to the need to fight on a nuclear battlefield. The strategic thought of the time was the next big war would be fought with tactical nuclear weapons, and hence the land force needed to remain dispersed to avoid targeting, and therefore needed large self contained units with good mobility able to fight independently. Hence why the division was reorganised into five what we would today call combined arms battlegroups, with 1500 soldiers and commanded by a full colonel, with the brigade ceasing to exist.
The Pentropic organisation made a lot of sense in the late 1950s. As soon as the policy of the major powers stopped being massive retaliation and started to be flexible response (ie, the next war likely wouldn't start out nuclear), the Pentropic organisation stopped making sense. It certainly makes no sense now. That is why simply looking at the past isn't always helpful. While there is no such thing as a new idea, what was the answer to the problem 10, 20, 50 years ago isn't the answer today, because the problem has changed.