Replace authors subfolder

When a visitor to a wordpress site click on the name of the posts author, they are redirected to the author's page which lists all of their articles.

In my case it's usuall xxx.com/authors/andrewtraub

My question is this: how do I replace the /authors/ part with something else using a plug-in so I don't have to modify the core code. I know there's an API that covers the permalinks and have seen a plug-in which removes the /categories/ section.

Thanks,

Andrew