Hancock will serve on the general insurance executive leadership team and join the company in the spring.

In his new role, Crane will oversee a global platform that represents more than $2 billion in premium placed.

Thomas Warsop succeeds Rone Baldwin, who is leaving the company to pursue other opportunities.

Mike Hessling will report directly to Scott Hudson, the company's global CEO.

Peter Krause most recently served as president of Marsh & McLennan Agency LLC's Southeast region.