If you can build relationships across groups, you are worth your weight in gold.

When you are given a task, when you are assigned a responsibility, when you have work to do, it is easy to forget about others. Yet what you do impacts them, and what they do might be significant for what you want to achieve.

Establishing and maintaining relationships with people who work in other departments, in different industries, in rival companies, in apparently antithetical roles is one of the most critical skill for success.

And that is true even if you are working on your own. Particularly if you are working on your own.