[tnegoshi]

Sure, there may be a correlation between a candidate's ability to answer every kind of algorithm & data structure problem across multiple respected CS textbooks and their performance at any one of these companies, but what of the many other confounding variables? What of the benefits, day-to-day perks, prestige, future open doors, workplace culture, or scale of the products they launch? Do those kinds of variables not also greatly impact the ability to attract and select top talent?