This is true in military tactics but it is often phrased in the contrapositive: if you want to move fast, establish enough trust such that talking is not needed.

The idea is that speed is *essential* but coordinative action is too. Most combat situations in history have not allowed for hierarchical resolution of all important decisions nor the slower, alternative consensus-based decision process. Independence and alignment with the mission allows for more agile, more effective units. As technology advances, it actually gets EASIER to talk and coordinate actively rather than train and pre-bake the coordination. Ship captains today can be released with much less latitude than 200 years ago because we can raise them on the radio at need.

I'm not arguing we should adopt military metaphors or even that exigencies force speed somehow, as they do often in military matters. I AM arguing that we ought to consider there are local and system-wide virtues to training and coordinating in such a way that you can move without talking.