In many cases the entire schedule has to be re worked and then approved by the school board. Not only is it high schools that need a schedule reworked when they are the only ones getting their start time moved back, but so do the other schools in the district such as elementaries and middle schools. With high schools being pushed back in districts where the different schools in the district share teachers, aids, lunch ladies, and kitchens the schedules have to be completely reworked so that is still possible otherwise they may need to hire or build which just adds to the cost of pushing back the start time
In many cases the entire schedule has to be re worked and then approved by the school board. Not only is it high schools that need a schedule reworked when they are the only ones getting their start time moved back, but so do the other schools in the district such as elementaries and middle schools. With high schools being pushed back in districts where the different schools in the district share teachers, aids, lunch ladies, and kitchens the schedules have to be completely reworked so that is still possible otherwise they may need to hire or build which just adds to the cost of pushing back the start time