Group ownership of a KB article

I assume this is an enhancement request, but I figure I'd check first just in case:

We are finding the overall knowledge base creation and approval process a bit difficult overall.  So far the only way we've been able to get multiple individuals to collaberate on an article, or to have several approval levels for an article (student worker makes first draft, supervisor approves, then goes to our Knowledge Process Owner for final approval and publishing), is by manually changing the owner between the different parties who want to work on the KB article.

Of course they can do some work in other collaberation tools, but without bootstrap to see the final product, this stage of passing the ball back and forth still occurs.

It would be ideal if a team could be designated as editors or assign a group as the KB owner (similar to Services) or something similar, work on the article together, review it, modify it, etc without the manual ownership changes, then finally submit it once they were happy with the overall article.

Has anyone found any work processes or work arounds for allowing multiple individuals to edit the same KB article without given everyone the write to edit all articles across the board?