I think the suggestion that the central server will have somewhere in the vicinity of 50 channels is a very generous projection. I think it is more likely to be in the high-tens to low-twenties with a majority of these being sealed off to all but ministerial staff.

The benefit of consolidating what would otherwise be 5 servers is;
(1) it allows all executive staff members to coordinate all their efforts in one place and thereby make the bigger picture/direction clearer for staff. Moreover, in knowing the general details of what another ministry might be doing, these members will be able to render their assistance more readily;
(2) it centralises moderation efforts. At the moment, while the Discord moderation team has authority over the main server, they do not possess similar abilities in the ministerial servers and this could feasibly cause an issue if and when a concerning matter arises. Through this consolidation, there will be one team across only two servers which is much easier to oversee; and perhaps most importantly,
(3) it provides new nations with an undeniably more straightforward means with which to see what they would like to get involved with and contribute. On this point, I would like to highlight the prospect of a more efficient application process. We could create an application channel wherein new and undoubtedly curious members would see a list of what these various ministries do and fill out an application. Once posted, the respective Minister (or their Deputy) will mask them and they will go through the respective ministry's introduction process.

Of course, certain tasks performed by ministries such as Foreign Affairs and Military Affairs perhaps warrant a more specialised server. I'm thinking of matters such as meeting rooms used by FA or operational channels used by the MA. The bulk of activity for the executive though can and should be brought under one roof. Even if FA and MA don't necessarily spend all their energies in the Executive Server, I would expect that they will at the very least maintain a presence in the server so as to make themselves known to newer members of our community.

On that note, this is a rough structure is based off what appears to be the most popular/commented ministerial proposal — Cultural Affairs, Educational Affairs, Foreign Affairs, Military Affairs, and World Assembly Affairs.

TSP EXECUTIVE SERVER

Ministry of Cultural Affairs
Public Discussion
Graphic Design
Event Planning
Media
Role-play
Managerial Discussion
Ministry of Educational Affairs
Public Discussion
Project Area
Managerial Discussion
Ministry of Foreign Affairs
Public Discussion
Foreign Affairs Updates
Internal Project Discussion
Managerial Discussion
Ministry of Military Affairs
Public Discussion
Internal Discussion
Managerial Discussion
Ministry of World Assembly Affairs
Public Discussion
Resolution Drafting
Managerial Discussion