On Thursday, Marsh McLennan announced changes to its executive committee effective January 1, 2022.

The company has promoted John Doyle to group president and chief operating officer of Marsh McLennan. He will also continue as vice chair of the company. Doyle is currently president and CEO of insurance broker Marsh, a position he assumed in 2017. In his new role, he will work with president and CEO Dan Glaser on overall strategic business and operational objectives.

The CEOs of Marsh, Guy Carpenter, Mercer and Oliver Wyman will report to Doyle and he will report to Glaser.

Martin South, president of Marsh US and Canada, will succeed Doyle as president and CEO of Marsh. He has also been appointed vice chair of Marsh McLennan and will join Marsh McLennan’s executive committee. South has more than 30 years of global insurance experience, including serving as CEO for Marsh’s Asia-Pacific region, Marsh UK & Ireland and Marsh Europe.

Also, Marsh announced the appointment of Pat Donnelly, currently head of Marsh Specialty for Marsh U.S. and Canada, as president of Marsh US and Canada. Donnelly will succeed South and will report to South and join Marsh’s executive committee. In the role, Donnelly will oversee Marsh’s insurance brokerage and risk advisory businesses across the US and Canada. Donnelly brings 20 years of experience to the post, having served in his current role since 2019 when JLT was acquired by Marsh McLennan. Previously, he was CEO of JLT Specialty US and held executive leadership positions at Aon Risk Solutions.

Dean Klisura, president of Guy Carpenter, has been named president and CEO of Guy Carpenter, succeeding Peter Hearn. Klisura was also appointed vice chair of Marsh McLennan and will succeed Hearn on Marsh McLennan’s executive committee. Klisura had been with Marsh for nearly 30 years, serving in executive leadership roles in Marsh’s Global Placement and Advisory Services and Global Specialties businesses before joining Guy Carpenter last year.

Hearn, currently CEO of Guy Carpenter, will continue in his role as vice chair of Marsh McLennan, focusing on sales and colleague development initiatives. Hearn will continue to report to Glaser.

Dominic Burke, vice chair of Marsh McLennan, will retire in mid-January. Burke, former CEO of Jardine Lloyd Thompson (JLT), joined Marsh McLennan following its acquisition of JLT in 2019.