Mercers investment consulting business in Toronto as a principal and senior investment consultant, said spokeswoman Stephanie Poe. The position is new. Mr. Kaposi was a senior consultant and director of manager research at Hewitt Associates in Canada. Marsha McDougal, a Hewitt spokeswoman, said Jonathan Singer, a member of Hewitts research team in Toronto, was named director of manager research. Wendy Mizuno, a national partner in Mercers retirement division, also was named a consultant in Mercers investment consulting business in Toronto, Ms. Poe said.