No matter what kind of business writing you do, Illuminate: Ignite Change Through Speeches, Stories, Ceremonies, and Symbols by Nancy Duarte and Patti Sanchez will help you quickly improve it.
They give the following structure for talks and presentations, which would also work well for articles:
1. What Is
2. What Could Be
3. New Bliss
This also provides a user friendly way to create a hero’s journey story (they call it a Venture Scape).
There are numerous case studies throughout. My favorites are MLK Jr, charity: water, Chick-fil-a, Steve Jobs, Nike and Duarte. It depicts the Venture Scapes for all these people and businesses.
I plan on keeping this within arm’s reach of my computer and I suspect you will too if you do any kind of writing.