A senior officer who raised the matter with the Herald said "40 people to work on a document like that is just unbelievable".
Mayoral candidates Vic Crone and Phil Goff are concerned about what the workshop says about council.
"Council shouldn't be having meetings for meetings' sake," Ms Crone said. "They need to focus on delivering core services and value for money for ratepayers."
Mr Goff said he had heard from officers and some councillors there was too much of a culture at the council of talking and not enough decision-making and getting things done. "We need a change in thinking and a change in culture." Mr Goff questioned the need to tie up 37 staff when the review was two years away.
A Local Government NZ spokeswoman said "councils can do what they wish about plan renewals and Auckland is often different from everyone else because they are bigger - and Auckland".
Staff at the council numbered 11,380 at the last count.