National Whips
NZPA report that Caucus prompted Lindsay Tisch from Junior Whip to Chief Whip, and Anne Tolley replaces Lindsay as Junior Whip.
Lindsay is a former party president, so has a good background for the organisational tasks involved with being Chief Whip.
Doesn’t sounds like they were contested elections, and that would have been my expectation. You don’t normally have elections for these roles. However Lindsay did become Junior Whip in a contested election I think.