NEW YORK, NY December 07, 2007 —Deputy Mayor Dan Doctoroff is leaving City Hall. The mayor's right hand man will become the president of Mayor Bloomberg's financial services corporation, Bloomberg LP. WNYC's Bob Hennelly has more.

Perhaps no one single person, other than the mayor himself, was so central to the administration's ambitious 5 borough vision for citywide economic expansion. The strategy looked to unleash the power of real estate values as a way to transform once blighted neighborhoods into trendy scenes with beautiful parks and rediscovered waterfront views.

Critics claimed that in the process, middle-class residents were increasingly squeezed out of the re-invented New York. But, both the mayor and Doctoroff saw the construction industry as having the same power to provide broad based economic opportunity, as manufacturing did a generation ago. But, for right now much of both the Bloomberg and Doctoroff vision is still more rendering than concrete.

For WNYC, I'm Bob Hennelly.