Fable
The post station assigns routes by silver pouch, not just by fast horse
The kingdom's relay station used to have only one rule: give urgent letters to the fastest horse. In the early years there were few letters, the fastest horse was always enough, and the accountant did not calculate fodder in detail. As long as the letters arrived on time, the station master considered the arrangement correct.
Later the chamber of commerce, the military camp and the county office all stuffed their letters into the post station. Every letter was written as urgent, the most expensive express horses ran day and night, and the monthly bill was so high no one dared look at it. Truly urgent military intelligence was instead squeezed onto the same road as ordinary invitations.
The postmaster first required all letters to go by ordinary horse. Costs dropped, but military intelligence arrived late, the merchants' guild missed a signing, and the saved fodder did not cover the losses. Then he assigned horses by sender identity: big merchants always got fast horses, while a small village's emergency illness could not get a slot.
The new accountant attached three tags to every letter: value, deadline, and which silver pouch it could draw on. Military intelligence was valuable and urgent, so it went by fast horse; routine bills were cheap and not urgent, so they went by pack train; uncertain letters took the medium route first and were escalated only if needed.
The stationmaster worried that dispatch was too complex. The accountant brought out old ledgers: the fastest horse's feed, late-delivery compensation, temporary extra drivers, all had been hidden in the month-end totals. The complexity already existed, it was just that no one put it in front of each horse dispatch.
The first version of triage also made mistakes. Some letters were underestimated, and only after they moved slowly did people discover the losses were large. The accounting office therefore added review: the consequences of delay, actual costs, and customer complaints for each route were recorded, so that the next labeling would be more accurate. The budget was not about rigidly pinching silver, but about looking at risk and cost together.
A few months later, the fastest horses ran only the routes truly worth running, and ordinary horses also had stable assignments. The post station did not sacrifice all quality; instead, it brought quality, deadlines, and silver into scheduling together. Smart routing does not mean always choosing the strongest resource.
Later, at the monthly settlement, the stationmaster no longer looked only at total fodder. He would look at which fast horses had saved major losses, which fast horses had merely delivered ordinary idle letters, and which slow routes were actually sufficient. The relay station's scheduling became more and more like a business: not saving every penny, but spending every penny on routes worth it. If the value of a letter could not be clearly stated, it would first go by the middle route and leave an upgrade option, so as not to empty the silver bag from the start.