It says something about the quality of the program, when a school bus driver retires but then asks to comeback as a substitute. Joann Mulholland was recognized with a plaque after spending 15 years driving a school bus for the Kern County Superintendent of Schools Office. As Maintenance, Operations and Transportation Services Administrator Don Fowler presented Mulholland with the plaque at a Safe Driving Awards ceremony in Bakersfield's Harvey Auditorium on Aug. 25, he told her fellow drivers, "And Joanne has decided to come back as a substitute driver." More