Queensland backbencher Andrew Laming said the new leadership team was "formidable", and he was confident they could finally deliver certainty to the energy sector.
"Most importantly, they're going to play a pretty big role in getting the two sides of the energy and environment debate together," Mr Laming said.
"Josh for his expertise, and Scott Morrison for his record delivering three very successful and well-respected budgets."
Mr Laming said the party needed to unite, and he was hoping Tony Abbott would retire at the next election.
"I'd encourage him to. I think we've moved on," he said.
"We are now in a post-Howard government era and the focus has to be on both the leadership and on unifying."
But he said he was "100 per cent" sure the Liberal Party could rebuild and even win the next election.
"These events of the last week are a blink in time in political history," he said.
"I know people are sick of the changes, but that is part and parcel of living in a democracy.
"If you want a place that doesn't change, you move to North Korea.”