British Swimming performance director Bill Sweetenham is still bitter about the way his uncompromising approach to training was received in the UK.
Sweetenham has not shied from controversy
The Australian's methods shook up the sport, and he was cleared of bullying last year after a three-month inquiry.
"They brought me in to change British swimming but when it got tough, British swimming wanted to change me," said Sweetenham. "It was heart-breaking."
Sweetenham will step down from his post after the Beijing Olympics.
It had been thought that he might remain in a consulting capacity but he now looks set to return to Australia.
"A couple of countries have approached me but I would prefer to be in Australia, helping Australia, because I'm an Aussie after all," he said.
Despite the controversy caused by his tough methods, Sweetenham said he had no regrets.
"I've had massive struggles moving things forward in Britain, but I wanted to get out of my comfort zone and I knew it wouldn't be easy," he said.
The 57-year-old believes that next year's Olympics will bring a torrent of world records.
"We will see the fastest most aggressive Olympics in history," he said.
"There will be an onslaught of world records, everyone's expecting something very special."