Include solo building librarians, school librarians who travel
between multiple campuses, paraprofessionals acting alone on campuses, certified teachers pursuing librarian credentials, nonprofessional assistants, district directors, and department heads.
Which means, a charter operator with
campuses in
multiple states, like KIPP, Uncommon Schools, Achievement First, or Rocketship Education, can not freely move a teacher or school leader
between their schools in various states.