From the Seattle Times article Reassigned school librarians get attention beyond Bellevue, by Katherine Long:
[Sandy] Livingston, the Sammamish librarian, echoed UW professor [Michael] Eisenberg's analysis: that a library without a librarian is just a depository of books. Among other things, school librarians help guide students to credible sources of information on the Internet, and teach them how to decide if a source they've found online is legitimate or not.
When I worked for King County Library System, I visited the Bellevue, Washington elementary public schools for summer-reading program visits. The librarians were knowledgable, in touch with their students, and maintained excellent library collections. Many of the students were avid readers. Had I gone the school librarian route, the Bellevue School District would have been a dream location.
Once upon a time.