A general manager position was being created to focus on operations and financial administration and enhance the gallery's commercial performance.
The commercial directive comes as the number of visitors at the gallery's blockbuster Degas to Dali exhibition fails to meet the forecast number , although retails sales are tracking ahead of budget. It also follows the successful reopening of a $121 million upgrade of the gallery last September, which Mr Saines played a huge and passionate role in delivering.
Mr Domm said Mr Saines had spent more time being a building developer than an artistic leader, and "was looking for new directions and I'm happy to assist him in that process".
Last night, Mr Saines said that while the details of the proposed new role were yet to be worked through "I will definitely be applying for it".
Mr Domm said the other affected members of the executive had been guaranteed jobs in the wider Regional Facilities Auckland organisation if they failed to get jobs in the art gallery management restructure.
The restructuring comes four months after Mr Domm took over the reins at RFA from former North Shore City chief executive John Brockies.
The Australian has a background in planning and managing tourism precincts, including The Rocks, Darling Harbour, the Sydney Convention and Exhibition Centre and the Sydney Entertainment Centre.
As part of a "strategic framework" he has announced a centralised marketing and communication plan for the gallery, Auckland Zoo and Mt Smart Stadium.