@KaBoom - It is a great idea to hire a litigation specialist, especially for a large company. My Dad was working for a company awhile ago that ended up in some legal trouble. Their litigation support team was instrumental in making sure the outcome was favorable for the company.
As you said a lot of people aren't familiar with certain types of industries. But you forgot to mention one of the most confusing fields: law. Our legal system is so complicated I think a specialist is really necessary to navigate it.