All those can help for some types of business. But as we've seen from the supply-chain disruptions since the start of the pandemic, there's also a cost of cutti

All those can help for some types of business. But as we've seen from the supply-chain disruptions since the start of the pandemic, there's also a cost of cutting things close. You can choose whether to typically err on the side of too much or too little, and you can do things that lower the likely size and probability of the error, but you can't just decide not to ever get it wrong, and getting it wrong will cost money.