Rank and file members hold the key to pushing out the those responsible for downfall of the Labor Party, according to Mark Latham.
"The breakdown in Labor's cohesion and unity are caused by subfactional warlords and is at the heart of all the problems of the modern party," Mr Latham said.
"If you can implement organisational changes that sideline the powers of the subfactions you're going a long to healing the wounds of the Labor movement.
"The main motivation for returning to a membership-based Labor Party is to sideline the subfactional warlords. Anything that puts them out of business is a good, positive thing for Labor organisation, Labor in terms of leadership stability, Labor in terms of policy."
Like many other senior Labor figures, Mr Latham said the party had much to reflect on following the severe election loss.
He said Opposition Leader Bill Shorten would provide stability and lead the party to the next election however believed a "wonderful" Labor government was between 10 and 15 years away based on the younger politicians and aspiring parliamentarians he had met.
"The next Labor government will be a cracker," he said.
Mr Latham said Labor needed to focus on educational reform, poverty and climate change as the keys to the party's future instead of having "100 balls in the air" without the capability or people power to manage it.
He was speaking at a public lecture and launch of his latest book Not Dead Yet at the University of Melbourne.