Student Navigation Assistants
Scroll down that page and you’ll see all the responsibilities for SNAs. It sounds like they have a desk but it sounds like they are also “roaming” because of all the chores they are assigned: enforcing food policies and quiet study, shelving books, picking up trash. They are apparently well-trained to serve in this position because they are allowed to assist student patrons with library research (peer-to-peer) at public computers.
This might be a way to incorporate peer-to-peer, provide lots of work-study students with jobs, and fulfill some much needed functions that librarians and library staff do not supply when we are stuck behind a desk.