In making a case for the leadership, Dr Broad points out that the electoral performance of the party was again poor.

The Labor vote in Braddon, where he was elected went backwards slightly on percentage terms. It did the same in Bass, and only just improved in Lyons, thanks primarily to outgoing leader Rebecca White's strong personal vote.

The party also struggled in Clark, where it has traditionally polled well, with independent Kristie Johnston taking a seat there at the expense of Labor which had not held two since the moved by Madeleine Ogilvie to the crossbench, and now to Liberals.

But more importantly, Dr Broad has noted that even with all of the vote from the Greens and independents, they would not have won another seat in those key Northern electorates.

That should send a strong message to the backroom of the Labor Party.

Even with a leader who performed very well, and some strong candidates, they couldn't come close to improving the performance of 2018.

And part of this must be attributed to the debacle of Dean Winter being denied preselection in Franklin.

It was a stark and public example of the power of the factional heads.

Anonymous Labor sources were saying that the spurning of Mr Winter was due to concerns from the left that he would be a challenger to David O'Byrne for leadership - but also for votes in Franklin.

It led to a messy internal row which Ms White eventually settled by demanding Mr Winter be endorsed.

Now Ms White seems to have become the sacrificial lamb to force a full review of the party in Tasmania.

If this is the only way she believes she can get change, then it speaks loudly about the influence and power of the factions.

Whether or not Dr Broad makes it into the leader's seat, the party needs to have a proper review and find a new way or languish in opposition for many years to come.