A can't miss, you'd have thought, for a story-teller as successful -- and as knowledgable about the legal system -- as John Grisham. So why does he miss?
Publishers believe that readers are not drawn to green, so the color is greatly disfavored in cover art. You don't believe me? Turn around right now and look at your bookshelf. How many green covers do you see?
To an almost uncanny degree, both programs were founded on the same set of mistaken assumptions about how to translate books to TV and whether it's worth it to attach famous names to TV projects.