Mr Goff will announce his lineup today.
He has already said former prime minister Helen Clark will be Labour's new foreign affairs spokeswoman, former health minister David Cunliffe the finance spokesman and former deputy prime minister Michael Cullen the shadow leader of the House.
List MPs Darren Hughes and Steve Chadwick will be the senior and junior whips.
Mr Goff waited for Mr Key to reveal his ministerial line-up before revealing the rest of Labour's roles.
Today he said there would be a mix of old and new in the lineup. "Obviously (we have) people who have had years of ministerial experience and proven competence in that area," he said on Radio New Zealand.
"We've also got up and coming people."
Mr Goff said some of those up and comers would be MPs with at least one term of experience who were yet to take on senior roles.
But he said the 13 new MPs would have to wait for their chance.
"They're probably the youngest, the most able and most talented group that Labour has had as a single influx into caucus at one time, since 1984.
"They won't be ready yet for major portfolio allocations, but they will have their chance to get their teeth into new areas to prove their worth and to compete for a position in a shadow cabinet leading up to the next election."
