In his column in the Sun Herald, Gould said he was "filthy" at the conduct of players during the recent 'phone sex scandal'.
Centre Mark Gasnier was dumped from the team on Thursday after he admitted making an obscene mobile phone call to a woman in the early hours of Wednesday morning.
The mobile phone belonged to winger Anthony Minichiello, who was also sacked from the team on Friday. Players are forbidden from having mobile phones in camp.
Another five other players were fined a reported $20,000 for misbehaviour.
Gould's announcement is the latest in a series of off-field events in what has been a troubled year for game.
"I am not a football coach any more and I don't want to be," Gould said.
"A group of my players have done the wrong thing and I'm filthy ... I cannot begin to tell you how much that hurts."
"The events of the past week have been a gut-wrenching... this will definitely be my last season as NSW coach."Like