David Haun, public sector practice, Grant Thornton
You learn a thing or two after 35 years in federal management. David Haun led efforts at the Office of Management and Budget during creation of the Homeland Security Department. More recently, he's managed OMB's oversight portfolio for departments that together spend $150 billion a year. He's received just about all the awards a career civil servant can. Now he's joined the public sector practice at Grant Thornton and Thursday joined Federal Drive with Tom Temin to share what big management hurdles remain for the federal government.