In a nutshell
@jasongorman
I don't really get it, but it sure does sound nice. What's the aha-moment here about the anti-proportional relationships between efficiency, effectiveness, needs and resources that I am missing?
@joe_vinegar
@yala @jasongorman @joe_vinegar An efficient system does not waste resources, at the possible expense of not meeting every need. An effective system meets every need, at the expense of some of the resources being idle sometimes (“wasted”).

@jonm @yala @jasongorman @joe_vinegar a good example in the UK is gritting roads.

An effective system as salt bins on every street, people employed and ready to spread the grit when it snows and gritters on standby at every major road junction.

But...

The decision is usually made by cash strapped councils to have only a few gritters which are inevitably never enough.

But it's efficient! and they don't "waste" (spend) money on gritters running the 364 days without snow.