Criticism of the School Trustees Association continued on Thursday as some trustees criticised its stance on national standards and attitude to principals and teachers.
The head of a rival trustees organisation says the national association is not a good advocate for school boards.
Secondary principals had already accused the association of treating teachers and principals as servants.
On Thursday, some trustees said they are dismayed by the association and that it does not represent boards' views.
The Wellington-Wairarapa School Trustees Association says the national body gets much of its income from contracts with the Government and that limits its ability to speak freely.
The association rejects that and denies there is widespread discontent among its members.