My experience is, written communication don't exist until I've mentioned a summary of it in a verbal communication.
Some people are not comfortable to express their annoyance until it crosses a point of no return. You have to proactively seek to bring out their disagreements, and resolve them.
Until you've experience in resolving a number of conflicts with the persons involved, to the extent you understand them on a personal level, you have not achieved trust. In that case, reducing verbal communication produces fuel to create an environment of mistrust and suspicion.
Some people are not comfortable to express their annoyance until it crosses a point of no return. You have to proactively seek to bring out their disagreements, and resolve them.
Until you've experience in resolving a number of conflicts with the persons involved, to the extent you understand them on a personal level, you have not achieved trust. In that case, reducing verbal communication produces fuel to create an environment of mistrust and suspicion.