"I recognise the challenges involved in transitions of this kind but I am honoured to accept the board's invitation and look forward to working with our outstanding people to execute our strategy".
"Her relationship with the board is not something the leadership team could actually see, nor will I criticise Michelle in any way for the last two-and-a-half years". "We are very grateful for all her hard work".
Guthrie, a former Google executive and media lawyer, has been a controversial figure at the ABC as she managed tighter budgets along with leading expansion into new business areas.
Anderson will serve as acting managing director while Guthrie's permanent replacement is found. Anderson is now Director, Entertainment & Specialist and has worked in the media industry for more than 30 years.
Faine, who has been with the ABC since 1989, also said he had confronted Ms Guthrie about why she was not the staff's "champion".
"I think it's different to what happened with [Malcolm] Turnbull, in that there isn't a voting selection here that I'm aware of that is one person over an another", he said.
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Dozens of people, including women and children, were killed in an attack on a military parade in southwestern Iran on Saturday. Iran is marking the anniversary of the beginning of the 1980-88 war with Iraq with several military parades across the nation.
He said Ms Guthrie had "been all but invisible" and when she was approached, all she would respond with "was all jargon".
Some regard Ms Guthrie as lacking some skills needed to run the national broadcaster and not being an effective lobbyist in Canberra, while others say Mr Milne was too close to former prime minister Malcolm Turnbull and criticised him for lobbying politicians in Canberra directly and dealing directly with ABC executives.
Milne emailed ABC staff this morning, saying that Guthrie had "today departed" the ABC.
He said the decision to sack the managing director was not a reflection on the selection process when she was appointed as Mark Scott's successor.
'Excellent decision, ' Ms Neighbour wrote. He added that Guthrie's relationship with Government "could have been better".
"It was their decision and their deliberations, I'm not privy to the deliberations".
Mr Milne conceded Ms Guthrie had done a "pretty good" job turning the ABC towards its digital future. We'll update this story when we know more.