ABC News: Andrew O'Connor
)Housing and Fisheries Minister Peter Tinley is set to be dumped from the McGowan government's cabinet in changes due to be finalised later this week.
Mr Tinley's demotion comes after Premier Mark McGowan said the government needed renewal for fresh faces and new ideas.
His demotion will ensure Perth MP John Carey secures a spot in the new cabinet.
Alongside Mr Carey, re-elected MPs Amber-Jade Sanderson, Reece Whitby, Don Punch and Tony Buti will also get ministerial spots.
It comes as Mr McGowan's record-breaking election victory has left him with a couple of unusual problems — the caucus room is no longer big enough for the party to meet, and there are too many new names to remember.
ABC News: Eliza Laschon
)If the projections are correct, the Labor Party could have as many as 75 MPs in Parliament.
Too many Labor MPs for caucus room
The party will hold a caucus meeting on Wednesday to finalise the new-look Cabinet, but the usual caucus meeting room will not be big enough, Mr McGowan said.
"I think we are going to go into the dining room at Parliament House, it is quite a big room," Mr McGowan said on Monday morning.
"That will be a little bit unique. But that is where we will have to meet."
Mr McGowan also admitted he did not know the names of all the new Labor MPs.
"The vast majority [I know]," he said.
"Some of the Upper House MPs, if they are number four or five on the ticket, I could not give you exact details — but I certainly will in the future.
"It is a privilege to have so many people."
Cabinet needs 'new blood': McGowan
Mr McGowan said Labor would use its new power to push through legislation it had been unsuccessful in passing last term.
He said this would include reappointing former corruption watchdog John McKechnie and passing political donation reform laws.
Mr McGowan said the caucus would appoint his new-look cabinet on Wednesday and indicated there could be significant changes to the ministry.
"I will work with my colleagues but obviously I will have a very, very large say," Mr McGowan said.
"There is a process by which the caucus elects ministers and parliamentary secretaries, but before that there is a lot of discussions and I will have some fairly firm views about it.
"I will make sure my views are known.
"You have to have some renewal. We have to make sure as the government goes forward that new people get experience and we have new ideas, new blood, new enthusiasm, new thoughts."
