Design a presentation on inventory management structured by the following:
1) At its basic theory, what is Just in Time (JIT) inventory management all about?
2) From an internal, operational perspective, if JIT is strictly adhered to, what is one downside to making everything literally "to order?"
3) How does a Kanban system overcome this disadvantage?
4) How exactly does a Kanban system of visual scheduling work?
5) Describe how schedules used to be created using a forecast driven push system.
6) Describe how, under JIT, it is more of a pull system and how it works.