a TEACHER-RETENTION.COM Presentation: SUPPORTING THE SUBSTITUTE TEACHER: A GUEST IN YOUR SCHOOL . The experts at The Center for Responsive Schools refer  to substitute  teachers as "guest " teachers. With today's teacher shortage, we wish to make them feel as professional and needed as possible to enhance their experience F dor the good of the teachers, students and the schoo.. We welcome  Kristen Vincent from CRS and her special guests Dr. Joe Tilley and a reseracher at CRS and  Kate Conway is a curriculum designers for CRS