Lets clarify whats going on.
A candidate must be independently nominated for a position, and accept that nomination. They cannot nominate themselves for an elected position. If more than 3 candidates are put forth that qualify for a given position, then a nominations committee comprising the District VP's and the EVP (total of 12 people) narrow that to three in accordance with the bylaws and standing rules. Also, there's nothing in the rules as they exist right now that prevent EC members that are nominated from being in that meeting.
Also, as we know, there's nothing preventing someone from running a write-in campaign.