I have not followed up on any of the anecdotes over the years, but there have been allegations that some authors are not actually writing the books they are getting the credit for, so to me that is trafficking talent. There are ghostwriters and perhaps they agree to a contract, but in some cases I wonder if something like what Donald Marshall described in his videos where he is writing the songs occurs. In one of Taylor's recent videos, the characters appear to be typing away but in the context of the video the arrangement is not clear.

Yes, Book publishers do this all the time! And the Music Industry!

Great point! Another example of Talent Trafficking!