Prosecutors in New York tend to get elected and stay elected, often for decades. The career of Charles Hynes in Brooklyn invites the question: How long is too long?
If the mayor of New York City actually believes in brain drain—and that "being cool counts"—then he should be more concerned about the 1.3 million people that left his metro area between 2000 and 2010.
Talent retention is not a key driver of economic vitality. If it were, Chicago and New York City would be in a world of trouble. But that doesn't stop many from resorting to the tired brain drain refrain.