Mission command can also be enforced the other way - by subordinates turning off their radios and acting on the last "commander's intent" they liked. This has been done up to Army HQ level, and very often at division and regiment level.
This part of Auftragstaktik - to violate orders when one thinks it's better like that is at the root of the whole system and pretty much ignored in U.S. writings. It was also a critical component of the birth of Blitzkrieg, and the greatest mistake of the Fall Gelb campaign in France 1940 happened when generals obeyed an order even though they knew it was wrong..
Auftragstaktik has its roots in the 18th century, and I can recount an interesting anecdote (albeit not accurately; merely out of the memory):
A major had followed his orders during the seven Years War and done something very stupid because the orders were outdated. A prince arrives and questions the man why he had done something that stupid. The major answered that this had been his order.
The prince replied "His majesty made you a major because he believed you would know when NOT to follow orders!"
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