The popular misconception that PR should be considered a part of the marketing department is a big mistake. Public relations, in the way I’ve been doing it for 22 years, is a sales role and it needs to be treated accordingly.
It takes the mindset of a salesperson to excel at PR, wherein marketing & communication people are not wired the same as them.
When you think of PR as a part of sales, then the good ideas that you give to the content producers are freebies; which is a very popular sales tool.