Model: 3 sources of inefficiency long throughput times many flow units many restarts per flow unit ![[./resources/model-3-sources-of-inefficiency.resources/img_20220821_111651.jpg]] [[model-primary-vs-secondary-needs.md|Model_ secondary needs]] ![[./resources/model-3-sources-of-inefficiency.resources/img_20220821_111622.jpg]] (src: [[book-this-is-lean-niklas-modig-par-ahlstrom.md|Book_ This is LEAN - Niklas Modig & Par Ahlstrom]])