It also has worries about the power of ministers to interfere in the process.
Judith Collins says National will use fast-track law for big transport projects.
Some say they are disadvantaged relative to their Australian counterparts
Petrol prices fell 12% in the June quarter.
Judith Collins is keeping her predecessors close.
Pair step back prior to Collins announcing her new Cabinet.
Politics: New leader says colleagues had previously not viewed her as a caucus-uniter.
The $64,000 question: can Judith Collins attract the support of the "median voter"?
Judith Collins says Michael Woodhouse still has her confidence though.
National Party caucus met this morning after last night's leadership vote.