Why Companies adopted Lean Thinking

Question:

1. Why Companies adopted Lean Thinking and JIT model? (1.5 Mark)
2. Discuss major types of Waste, companies has to keep in mind during production. (1.5 Mark)
3. Due to pandemic COVID 19 emergency, do you think agile supply chain is the right concept in this kind of situation? Give reason with example. (1.5 Mark)
4. Reference (0.5 Mark)