Grant Robertson's decision to spurn the deputy leadership does not bode well for the Labour Party under its new leader. David Cunliffe had intimated his support for Mr Robertson in the clear hope of reconciling the caucus to the result of the party election.
Mr Robertson, preferred by 16 MPs to 11 for Mr Cunliffe and seven for Shane Jones, had given every impression in the campaign that whatever the result he was unlikely to rock the boat. Now he is making waves.
His decision is a declaration that he does not wish to work too closely with the new leader. Instead he will be Labour's shadow leader of the House, a role that may let him range widely of his own accord.
The decision suggests he has not put his leadership ambition aside for the time being. If he was content to wait he would have continued in the deputy role, an ideal position for keeping your name to the fore and proving yourself capable in the leader's absences. But an ambitious and honourable deputy is also supposed to give the leader unconditional support. That perhaps was the obstacle for Mr Robertson continuing in a job he has reputedly done well.
His move presents Mr Cunliffe with a watered-down version of the destabilising figure that Mr Cunliffe posed to David Shearer - a potential replacement who will haunt him if he cannot lift the party's polling results in the year or so to the next election. It is reasonable to suppose Mr Robertson did not make this decision alone. Some of the 16 MPs who voted for him will have been consulted. They must not have wanted him to take the deputy job. The antipathy to him in the caucus seems to run deep.