AWOL. Dammit.
Right up my alley, too. I gotta get over to GQ more often.
The Allies did produce decent tank designs in WWII, but, as has been pointed out, not in sufficient numbers or a timely fashion. To get into the war quickly, off-the-shelf components were cobbled together into a design that would have been sufficient for 1935.
The rapid technological advancements and refinements made designs obsoloete just as fast as they were designed (look at the plethora of aircraft types we came up with to meet the strategic needs of the Pacific Theater, which was fought and won on the nascent carrier doctrine).
Overall, it was deemed (and I can safely agree in hindsight) that it was better to arrive in battle, in superior numbers and a timely fashion, with a marginal design that could be rapidly mass-produced, than to arrive later with fewer numbers of a more refined design that may be more difficult to manufacture in quantity, even with mass production techniques.
This dovetailed nicely with the massive mobilization of the population, both in the workforce and in the armed forces, with their assembly-line basic-training methodology designed to get people into battle quickly with the basics and then rely upon competent leadership and superior firepower to minimize casualties until people and units could be “Baptized Under Fire”.
The evolution of accurate close-air-support, both fixed- and rotary winged, has largely rendered that concept obsolete on the modern battlefield, and without air-superiority in Desert Storm, my butt may not be sitting here debating the topic.
Note that these methods were not employed with our pilot training program, just the dog-faces and DATs in the trenches. Which is one of the reasons our pilots enjoyed phenominal success in the latter phases of the Pacific Theater, whereas just the opposite was true in the earlier phases. The AM6 Zero was an excellent fighter. For 1940.
By '45, it was outclassed by better American aircraft, and attrition had pared the ranks of veteran Japanese pilots who may have been able to offset the American edge to some degree. The Great Marianas Turkey Shoot and Leyte are good examples of this.
At least that’s my johnny-come-lately armchair take on the matter, given the excellent commentary already provided on the topic.