The Prime Minister says some of the cutbacks proposed for the Ministry of Foreign Affairs may be too aggressive.
A restructure is set to cut 292 jobs at the ministry.
There may also be changes to family allowances for diplomats on overseas postings.
John Key says he would not be surprised if some proposals did not go ahead, saying the changes in some areas are too aggressive.
In particular he says there are genuine issues with overseas postings.
He says in most cases spouses accompany their partners and it does have to be acknowledged that they are not always able to take a job on those postings.
Mr Key will deliver a speech in Auckland on Thursday where he will reveal another merger of some government agencies.