JIT manufacturing and on demand stock systems are actually the best way yo keep cash flow high and assets low so there is more of a straight line from revenue to profit. Dell is a great example. They are a logistics company and not a computer company like most believe. They have assembly locations but they are mostly focused on tying contracted companies to Dell customers while maintaining control of the money.
I did a case study on them for my MBA.
JIT systems are great business strategies but horrible SHTF strategies.