Slane is launching an advisory firm assisting sports and media companies, with Papadopoulos joining the Grocery Manufacturers Association (GMA) as General Counsel and SVP of Operations and Special Initiatives.
The GMA is currently led by Geoff Freeman, former AGA CEO.
Elsewhere, Dan Bretl, Casey Clark and Chris Cylke have all received promotions from Vice President roles.
Bretl becomes SVP of Strategy and Operations, Clark SVP of Strategic Communication and Cylke SVP of Government Relations.
AGA CEO Bill Miller said: "These promotions recognise the contributions these three leaders have already made to our organisational and industry success, and their ability to lead functions fundamental to AGA being the best steward of our industry, and advocate for our members.
"The AGA accomplished a great deal during Sara and Stacy’s tenure, and much of our organisational success is to their credit. Their contributions helped reshape and advance the organisation and enable some of the most significant policy victories in our organisation’s history."
Miller himself was named AGA CEO in December and will appear in Gambling Insider magazine’s US CEO special to discuss his first few months in the role.
