Leeza Vicaro is a divisional manager for Liddon Industries. Leeza is responsible for the production at three of Liddon's plants. Production at Plant 1 provides components to Plant 2, which in turn provides components to Plant 3. In the second and third plants, component parts from the previous plant are added to raw materials during the production process. Leeza is considering the implementation of JIT manufacturing at all three plants. What are some drawbacks of adopting the JIT system that Leeza should consider?