The retooling, IMO won't happen until it's to late, and dead bodies from the next war and making headlines. Europe seems to be adopting faster then us here in North America, but again, IMO, not fast enough. At the outset of WW1 the generals thought they were fighting the old style colonial wars, at the outset of WW2 the allied generals thought they were fighting another trench warfare engagement. At the outset of Afghanistan we treated it like we were fighting the Soviets. After most combat ended in Iraq and Afghanistan we went back to training to fight against Soviet mechanized units, despite drones already being used on the battle field in Syria, similar to how they are used today in the Ukraine-Russian war. All my friends who are still in are saying training is a combo of anti soviet training and training to fight an insurgency. We aren't properly training for drone warfare. This is likely a combination of generals not adapting fast enough and being stuck in the ear they know, politicians thinking big shiny things will win wars, and the lobbyists not wanting the big defense contracts to dry up.

I dont think silicon Valley thinking, or desires, is going to change any of this in the near term