Why should you hire a professional journalist to write your case studies?

...Good question. 
Here's why:
1. A journalist is a skilled interviewer.
2. A journalist knows how to elicit the perfect quotes and anecdotes to make a case study come alive. 
3. A journalist knows the difference between facts and marketing-speak.
4. A journalist knows how to tell a story that has a beginning, a middle and an end.
5. A journalist can make complex subjects accessible
5. Because you want your case studies to be read by potential clients.