Should I be using use rel=author in this case?

[VistageSEO]

We have a large blog, which it appears one of our regional blogs (managed separately) is simply scraping content off of our blog and adding it to theirs.

Would adding rel=author (for all of our guest bloggers) help eliminate google seeing the regional blog content as scraped or duplicate? Is rel=author the best solution here?

[AlanBleiweiss]

Check out Google's Source Attribution tag - that's the way I'd go in this situation rather than author, unless the "scraped" copy changes author info, which is a whole different issue..