Investment firm names CIO, while CEO retires from financial services group. : Access full content on the International Adviser site, access your saved articles, control email preferences and amend your account details Chief investment officer Nicholas Colling will retire from the firm in May 2023 after more than 30 years with the business. Sheldon MacDonald will take over, after joining the company in October 2021 as chief investment officer of multi-asset from Liontrust where he held several senior investment roles.