I know that the title reminds McLuhan and others- older even than me (at least, considering my biological age).
Anyway, often I see a misalignment between the channels available- and their use.
Whenever I was working on a project, I was always puzzled by the look I got when I asked about communication policy.
In most cases, communication is considered “embedded” in the activities- hence, no need whatsoever to plan or set guidelines.
This is a short article (1000 words is the limit), summarizing some suggestions that I keep sharing since late 1980s, when I was working everyday in a different project/site.