Ok, lets keep TIK out. Like I said his videos about single battles are very detailed. But he gets agitated to quickly when it gets in other areas. And his Cocky attitude is hard to watch.
Doesen't change the fact that he was handpicked by Hitler. As far as i know he was asked to paticipate in 1938 but declined. Since he wasn't executed in 1944 i would argue that they could not find any hard evidence. What he said after the war about this may also be put in question, as he may have tried to make himself look better as he had done for his military work. His work up to Barbarossa also seems to have been quite good. For Barbarossa, he as many others completely underestimated the red Army and the scope of the Operation.
But this was performed by a small group. Many of the Convicted were punished for being asked and not reporting this. The actual Traitors were few and not i the important positions, which is why it failed in the first place. Yes the Waffen SS grew considerably at the end. keep in Mind that about half of this were foreign volunteers which were not allowed to join the Wehrmacht. Thats one reason for the fast growing. But it remains that for the most part it was a small group who could not possibly oppose the army in a power struggle. But i do belive that hilter lost trust in the army after the coup attempt as shown in that he gave evermore to the SS (Himmler taking command over the reserve and later armygroup for example). We should consider that the disasters in Summer 1944 pretty much broke Hitler (Invasion, Coup, Bagration)
I honestly fail to understand how the OKW would function as a counterweight. It could not give orders to OKH, OKL, and OKM. Can you elaborate on this? Also the OKW did coordinate between them (Weserübung for example), but each one had also their own tasks and operation (infamously Battle of Britain or Atlantic Battle).
The Reichwehr had relatively large Stockpiles of basic equipment (Guns, MGs, Artillery...) and basic Infantery Divisions requires relativly small and cheap Equipment Tanks came later + the training of their soldiers were designed to quickly expand the army. Luftwaffe was nonexistant (Also Göring was in charge of the Budget so here is favoritism to see) Navy was completly outdated. Both are also more technical so more expensive.
>Greece was months away from joining the axis
Yeah it was axis friendly until Italy invaded.
Like i wrote above, as he grew more paranoic, he gave the SS more and more. But this happened in the late stages of the war, for the most part it was a small unit. They got preferential treatment because they performed well. The Army also had elite divisions who got preferential treatment (Großdeutschland, Brandenburg, 78. Sturm, Lehr Div, basically all Panzer divs). Again Hitler changed considerably at the end.
To get to the Main point, i really don't see why Hitler would have to purge an army he himself build up and had 6 years time to replace unwanted personal. The army of 1939 is not the army of 1933 (you said yourself the Reishwehr wasn*t really an Army), i would agree that the Reichswehr would be sketchy but he had enough time and and did changed it to his wishes. Yes there were Generals who did not like him and disagreed with him, but thats the point. If you perform you could speak your mind. For example Guderian clashed often with him, but was later made chief of OKH (after a short break).