This sounds shockingly similar to research by Princeton professor Burton Malkiel, who found that "a blindfolded monkey throwing darts at a newspaper's stock page could select a portfolio that would do just as well as one carefully selected by experts."
I hadn't been aware of this work in Italy until this morning, as I perused the results of Thursday's Ig Nobel awards announced at Harvard University. The Ig Nobels, a celebration of strange research, are selected by Annals of Improbable Research magazine. Other winners this year included the team that demonstrated that socks worn on the outside of shoes helps prevent slipping on ice, and researchers who proved the health hazard posed by scientists with beards. (Facial hair provides a home for nasty microbes picked up in the lab.)
The work looks at the results of the Peter Principle, which predicts that people are promoted to the level of their incompetence. Their skill gets them a series of job advances until they are ultimately promoted one level higher than abilities warrant. This results in an organization promoting itself into declining performance.
The Italian researchers ran computational models and concluded that "counterintuitively, that in order to avoid such an (Peter Principle) effect the best ways for improving the efficiency of a given organization are either to promote each time an agent at random or to promote randomly the best and the worst members in terms of competence."
Is your dart board in top working order?