Actually many issue arise when there's no right communication - that's what I've really learned and experienced in the past few years.

Yesterday, I managed to work with the support teams to find out the root cause for an issue hanging for 4 days, by just:

1) Drawing out all the connected points (which could be the point of failure) and its dependencies
2) Discuss among the support team on the purpose of the point of failure.

Et voila. We found the root cause, and had the issue solved.

Hence,

Communication = To reach the understanding
Visualisation = Making your brain easy to understand

The combination provides the best result.