In my experience, a lot of people call a meeting to try and make something happen. The thing _should_ be happening already but the team is not working efficiency in a well-thought-out manner. Rather than figure out what the real problem is with the working practices, or recognising some genuinely novel feature of the situation that is blocking progress, they resort just booking meeting after meeting until somehow it is resolved. I don't attend meetings without an agenda and at least a (sometimes optimistic) list of what the outputs of the meeting should be. Decision on X. Routes of investigation for Y. Outline plan on Z.