Something that I just realised about a Robert McNamara presidency for the US by the time of TNO2....
One of the most contravsoial things that McNamara did in OTL as the Secretary of Defense was launching
Project 100,000. In which uneducated man suffering from severe learning difficulties, who often come from economically disadvantage backgrounds, and would not have passed the army's qualification test under normal circumstances since they belong in the bottom 10th-30th percentile range, ended up getting drafted to fight in Vietnam anyway. Resulting in them suffering from much highier causality rates and accidents compared to other American draftees.
Unlike what many have said in online memes, McNamara didn't do this because he hates the poor and wanted them to die in Vietnam as some sort of 'eugenics with extra steps' plan. Instead, he did so because he approch war from the perspective of a businessperson or an accountant: With him only looking at the numbers of US soldiers in the field, and blindly believing that as long as they are given enough hours of training and equipped with enough high-tech gear, they will be able to fight just as effectively as any other soldier... Which turns out to absolutly not be the case.
Here is the thing: In the context of HOI instead of the real world, McNamara's assumptions were 100% correct! In that a unit of manpower that was recruited under the 'Scraping the Barrel'
conscription law will fight every bit as effectively as those that were recruited under 'volunteers only'. With the only down side being the extra time in training required and the hit to your economic output. Meaning that for vanilla HOI4, there really is no reason for you NOT to introduce conscription as soon as you are able to do so.
Hence, this will be an interesting opportunity for TNO to examine and deconstruct yet another HOI gameplay mechanic the same way that a Göring under Germany does with his War Plans and Ponzi scheme economy, by looking at the way in which wars cannot be fought by you simply min-maxing the numbers on a spreadsheet in a realistic setting, since humans are not robots or math equations. With those divisions that look great on paper just falling apart the moment that get deployed in a war zone.