I am sure the 2010 Nobel Prize winners Drs. Alessandro Pluchino, Andrea Rapisarda, and Cesare Garofalo are well known for demonstrating mathematically that organizations would become more efficient if they promoted people at random. See details here. See a Java based simulator to create your own organization and experiment here.
Now, (from the Wired) Drs. Pluchino and Alessio Biondo "took 15 years of data from four of the world’s biggest stock exchanges
and pitted four top trading algorithms against one programmed to trade
at random. The random algo did at least as well as the others—and it
experienced a lot less day-to-day volatility."
Science is exploring new grounds. Is there true randomness or only unpredictability?
Read my related blogs "Predictions - Who to trust" here, and "Gorilla hiding in plain sight" here.