redundancy provides excess capacity for when things go tits up. The more efficient "just-in-time" supply chain means that auto plants in Ohio get shut down because of earthquakes in japan. Having more people employed than than you need means your people can take vacations, get sick, or even be trained.
Having overqualified people doing a job is "inefficient" but if something unexpected happens they're much more likely to be able to respond positively.
Hiring a hundred guys with picks and shovels to dig a ditch is more expensive and takes longer than hiring one guy with a backhoe but produces much more secondary economic growth and invests them all in the project emotionally.
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There are lots of virtues in inefficiency:
redundancy provides excess capacity for when things go tits up. The more efficient "just-in-time" supply chain means that auto plants in Ohio get shut down because of earthquakes in japan. Having more people employed than than you need means your people can take vacations, get sick, or even be trained.
Having overqualified people doing a job is "inefficient" but if something unexpected happens they're much more likely to be able to respond positively.
Hiring a hundred guys with picks and shovels to dig a ditch is more expensive and takes longer than hiring one guy with a backhoe but produces much more secondary economic growth and invests them all in the project emotionally.