The problem with JIT is the same as the problem everywhere else: When the wrong type of bean counters look at a cost too nearsightedly, they typically address t

The problem with JIT is the same as the problem everywhere else: When the wrong type of bean counters look at a cost too nearsightedly, they typically address the "static" costs and miss the hidden costs that are much harder to both understand and measure - typically "dynamic" costs that are both under-reported and hard to measure, and also to understand since there are a lot of moving parts. The whole point of JIT is to take control of the dynamic effects so it's a bit ironic.