I think the lack of a standardised approach to the recovery led to:
A loss of confidence in the whole system by the Minister.
This led to a new structure put in place that then undermined all of the agencies involved in the recovery - especially after September.
Then of course, the Minister knew best model didn't work either, and the return to the standard model increased delay, increased costs, and created a community that had things done to them rather than things done with them.
Examples of this, include the mass demolition of historic buildings in late 2010 and early 2011, including the public viewing of the demolitions and potential exposure to asbestos..., the botched reorganisation of the schooling system, including allocating colour dots to the name tags of the school leaders attending the meeting and those of you with red dots, your school is closing etc
Again, too much of the recovery was managed from Wellington creating an us and them situation
And the ability to communicate effectively was removed.
On top of that, rapid changes and developments such as the removal of chimneys and the push to cleaner fuel was possibly too much change for people in a state of shock, sleep deprived due to after shocks, and limited professional intervention to mental health recovery - especially for young children and teenagers.
At the same time, the dismantling of long-term communities undermined social cohesion, social networks and the informal support networks that many people would have used. The lack of community facilities to come together and recharge all compounded and reduced an effective recovery.