I have a background with production planning in the automotive industry. Here we use different planning tools for managing production. Recurrent jobs, such as maintenance is highly visible when looking at the daily or weekly schedules or Gantt charts.
Just as in production, when you have more items to plan, the more important it is to have good visibility over your resources to avoid bottle necks or under utilization. I feel the same is pretty valid in computing.
One cool thing would be that the schedule would be populated with actual time each backup took. This way we could easily spot any changes that needs attending before they become problems.