In 2010 research was done to find the most effective promotion strategy for employers. For the control group they used random selection. Random won.
Canadian University distributed condoms with safe sex message stapled to them. The staples punctured the condoms rendering them unsafe.
Coca-Cola cancelled a Canadian promotion that paired randomly generated English and French words inside bottle caps after a woman got one that said “You Retard.”
A team of Italian scientists have mathematically demonstrated that companies would be more efficient if they promoted their employees at random.