John R. Colson to Assume Role as Executive Chairman in May 2011; James F. O'Neil III to Become CEO

HOUSTON, March 24, 2011 /PRNewswire/ -- Quanta Services, Inc. (NYSE: PWR) today announced that chairman and chief executive officer (CEO) John R. Colson will assume the role of executive chairman of the board on May 19, 2011, and that president and chief operating officer (COO) James F. O'Neil III w

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