You know the answer to that question if you understand how important efficient communication is for any kind of collaboration between people, whether the context is a couple or a family, a business or non-profit organization, or a nation.
When something does not work in a relationship, then what would the therapist say? Probably something like:
"Work on your relationship. Start with communication. Talk freely and listen excellently."
The same advice can be given to any business or organization that needs to improve its performance. It is common sense, but sometimes you need a therapist to remind you about it.