What kind of loophole can technical writer services fill?

There are many loopholes in every website that are difficult for novices to pick up but professional technical writer services are experts at picking them up:

Another staff produces documentation "on the side" due to a lack of resources dedicated to content writing.

Engineers and content creators don't communicate well.

There is a lack of focus on determining what clients require.

It is inefficient and painful to write and publish.

The content is never updated, it's disorganized, and it's inconsistent.