How will everyone engage existing members and make them feel they have a voice and listened to by the Committee?

Personally I would create a group of regional supporters and friends of the GAGB to help new cachers and make new members heard and existing members feel like they have a place (the new group would require a change to the constitution) and a new mid-tier would be accountable to the committee and would be able to host events under the GAGB's banner and feedback across the country and help assist the GAGB to ensure all cachers are heard and listened to across the country. Not just those who are members of the forum.

I would also create a way of defining membership about what is considered active (by helping to change the constitution to encompass all platforms of social media, not just the forum)