In the same vein, the US developed upgraded Sherman tanks with a bigger, higher velocity 76mm cannon and produced them in mass quantities, but they left them behind during the first weeks and months of the invasion. The men didn't want the new tanks because they hadn't yet experienced a situation where they were woefully inadequate, and the older 75mm guns performed better against soft targets like buildings. Don't fix what ain't broke, and so forth.
Which was a serious mistake. The situation had changed, and the 75mm guns were no longer sufficient to fight more heavily armored Tiger and Panther tanks from longer engagement ranges than they experienced in Italy. They would have fared better had they been forced into using the upgraded equipment that already existed.
I think what I'm really suggesting is a move from waterfall to agile procurement. A large proportion of procurement requirements can be satisfied better, faster and cheaper with COTS equipment. Rapid iterative improvements in existing weapons systems can provide more combat capability than big moonshot projects to gain a generational advantage.
The US military has unmatched logistical capability, but that capability is often hampered by slow and unresponsive procurement. Being able to move tons of materiel to any place on earth at very short notice is a massive advantage, but that advantage is squandered if you can't procure the right equipment at the right time.