Subutai and the Mongol meritocracy
This is documented history rather than a laboratory result. The events are well recorded. What they teach is an argument, and the entry makes it openly.
In 1206, Genghis Khan did something almost unheard of for a ruler of his time. He promoted a man named Subutai, the son of a blacksmith, with no noble blood and no military background, to the highest ranks of his army. Under most systems of the era, birth decided everything, and a commoner could never lead. But the Mongol army ran differently. It promoted on demonstrated results in battle, on what a person could actually do under pressure, not on their family. Subutai went on to become one of the greatest military commanders in history, directing campaigns across Asia and Europe, winning dozens of major battles, and helping build the largest contiguous land empire the world has ever seen. His record, not his birth, carried him, and the system that allowed it produced extraordinary results.
When you promote on demonstrated ability rather than on background or pedigree, you get access to talent that every status-based system throws away. Subutai would have failed every filter that screens for the right schools, the right connections, the right look, because he had none of them, and he was arguably the best at his job in the world. Credentials still carry information, but what they measure is how someone got selected before, not what they can do now. The person whose record is remarkable but whose background is unimpressive is exactly the candidate that pedigree-based hiring is built to miss.
Rome made it impossible to reach the top without every rung, because the judgement the top job needs only forms by holding the smaller ones. The Mongols promoted a blacksmith's son with no military background straight to command, and he became one of the most successful commanders who ever lived. Both worked. What separates them is what the role actually demands. Where the job is judging work in a function you have never done, the skipped rungs show up as predictable failures. Where it is producing results under stress that can be seen directly, pedigree only measures how someone was selected before, not what they can do now.
Source: Documented history. The Secret History of the Mongols and standard histories of the Mongol Empire.
Genghis Khan and the Making of the Modern World
Jack Weatherford, 2004
How a meritocratic army from the steppe reshaped the world, and why the meritocracy mattered.
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