[joncrocks]

Every meeting should have:

* an agenda, so people know what is going to be discussed and the right people can be in the meeting, and how long it might take

* expected outcomes - e.g. Are we just discussing something, are we deciding something

If those two things aren't done, it's likely not to be an effective meeting.

[ryandrake]

Let me add: A notetaker and published minutes, so everything discussed and decided can be referenced later.

[joncrocks]

Indeed, and actions assigned to accountable individuals etc. How to run an effective meeting is another topic entirely :-)

[teeray]

Also:

* a moderator, a role that can be held by literally anyone. The goal of the moderator is to keep everyone to the agenda, manage time and handle Q&A.