If you attended the Juneau-Douglas High School graduation ceremony, you may have seen the musical chairs between one family and some of the graduating students. That family did not sit in the seats reserved for the graduating students. The school failed to reserve enough seats for the students graduating. It was simple math, and the school failed.
If this is the sort of poor planning that occurs from school staff for public events, I hate to think what sort of habits they instill in the classroom.