Smith is averaging 43.67 in his 95 ODIs including eight centuries. Warner's average is 44.84 from 93 matches, with 13 centuries, seven of which have come in the last four months.They were significant figures when Australia walloped New Zealand 3-0 across the Tasman last month, scoring three centuries between them, one in each game, which helped set up totals beyond New Zealand's capabilities.
It opens a door for New Zealand, if their bowlers are good enough, but the flipside is players like to test themselves against the best.
Australia will still be good, but certainly not as good as they would have been.
The stand-in captain will be named later today.
Warner has been vice captain, meaning a hefty chunk of Australia's leadership group will not be in New Zealand.
However one possibility which has emerged is Australia's selectors might lean on Warner to step back in to take charge on the field, which would fly in the face of the reasoning for leaving him out in the first place.