>Randomness introduces inefficiency which implies delay
That assumes that the previous arrangement, in the form of sequential escalation, was a pre-existing state of nature that came at no cost of effort. And that randomness has to be introduced after the fact, at a new and extra cost.
But I think if cases were ordered without any specifically intended sequence of any kind, that starting point would be closer to randomness than the currently existing escalation. So randomness would cost less, not more.
That assumes that the previous arrangement, in the form of sequential escalation, was a pre-existing state of nature that came at no cost of effort. And that randomness has to be introduced after the fact, at a new and extra cost.
But I think if cases were ordered without any specifically intended sequence of any kind, that starting point would be closer to randomness than the currently existing escalation. So randomness would cost less, not more.