HEGYI: That's because of severe staffing shortages across the district. And he puts on a good face for his students and staff. Hey, Friday tomorrow - I'll see you tomorrow. Principal Joseph Uy is walking the hallways.
NATE HEGYI, BYLINE: It's mid-morning at Woolley Elementary School in North Las Vegas. Here's Nate Hegyi from the Mountain West News Bureau. A sign of the times - some principals are filling in as custodians and cafeteria workers. And for a long time, it's had a problem with staffing shortages. Las Vegas has the fifth-biggest school district in the U.S.
