Mr. Hazlewood, who will head the shop's expanded strategic research operations, is the seventh top-level executive to join Ayer since May. He formerly was exec VP-managing director of planning and research at Ammirati Puris Lintas.
Ayer CEO Mary Lou Quinlan categorized the expanding management team as part of a worldwide re-engineering plan.
In the last six months, Ayer has hired Ruth Ayers, from DDB Needham Worldwide, where she headed up new business, as exec VP-marketing director; Mary Beth Casey as exec VP-senior partner on Continental Airlines; David Henke as exec VP-creative director on General Motors Corp.; Richard Stoffer as exec VP-senior partner on U S West; and Neil Gomberg as exec VP-group creative director, also on U S West.
The agency also tapped Julian Boulding, D'Arcy Masius Benton & Bowles' former international director of client services, as president of its international division.