Yes, you read that right. A "feral librarian" is someone who does not an MLS who has been hired to work as a librarian. My textbook goes on to describe why they are a problem. "Feral Librarians will lack the norms and values that are instilled in LIS programs."
I'm just in love with the phrase "feral librarian." I can't help but craft this image in my head based on feral cats.