Gay, director of life, savings and protection, Craig, director of financial conduct regulation, and Nick Starling, director of general insurance, will be leaving following the restructure.
Gay (pictured) joined the ABI after a 14-month stint as director-general of the Association of Independent Financial Advisers (AIFA, now APFA).
In a statement, the ABI said: “Our new structure will enable us to deliver a more focused, effective service for our members, delivering the results that they want and expect of us.
“Today’s changes will make the ABI fit for the future and ensure we are well placed to support our members through these challenging times.
“The industry has a huge agenda ahead – Solvency II and international capital requirements; delivering Flood Re; campaigning to reduce the cause of high costs in motor insurance; pension reform and engaging with the agenda of the Financial Conduct Authority, to name but a few.
“The priority for the ABI is to drive forward on these issues on behalf of our membership.”