Tim Mitchell was named general manager of corporate strategy at the NZ$13.2 billion (US$10.5 billion) New Zealand Superannuation Fund, Auckland, according to the funds website. Mr. Mitchell will be responsible for identifying and embedding global best practices, according to the site. He was general manager of public markets at the fund, where he will be replaced by Neil Williams in May. Mr. Williams is global head of asset allocation at UBS Global Asset Management in London. Curt Custard, head of UBS global investment solutions, will take over temporarily while a replacement is sought, UBS spokesman Kris Kagel said.