If you have been in the workplace for any serious length of time, you have probably encountered conversations in which everyone knows what is being said but no one is saying it.
We don't want to say that the CEO's idea is half-baked so, in very polite terms, we mention that the proposal could benefit greatly from some additional analysis.
We don't want to say that Edgar is a conniving bundle of raw ambition who'd sell his mother to get a promotion so we say that he needs some more seasoning in the field, perhaps in an international assignment.
When such things are not said, what is really being said may be understood far better than any direct statement that is cluttered with words because within the unspoken you can sense a meeting of the minds. No words can achieve such eloquence.