The Communications Alliance praised Quigley's determination leading a difficult project in a politically charged environment. Also in its statement, the telecom industry group said Quigley achieved "significant progress" over the past four years.
Quigley resigned "after a barrage of mainly politically motivated criticism," said telecom analyst Paul Budde. However, he added that it was the right time to change the CEO at NBN Co because it takes away a "political target" and brings fresh eyes to the project.
"Australia should be grateful to have had such a passionate person and highly experience telecom executive to pull the NBN of the ground," Budde said.
"He was the first employee of the company, and did build up the organisation from scratch. Under any circumstances that would be a massive challenge what made this a far bigger challenge was the political pressure behind the whole project."
Quigley "has steered the company and presented well and understands the technology choices," said IBRS analyst Guy Cranswick. "Unfortunately, [the exit occurred] at time when there are serious questions about roll out and financial matters with contractors."
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