Some people try to use meetings to achieve things that meetings won't work for. That can turn an intelligent group into a dull and mean monster.
Types of meetings to avoid:
<ul>
<li>Daily standups or status updates.</li>
<li>Anything without an agenda.</li>
<li>A meeting with too many people.</li>
<li>Brainstorming from scratch.</li>
</ul>
It's not that all meetings are bad, just that there are better tools to accomplish the job.

Meetings have an intended purpose

Five people can have a productive meeting, but 300 people can't.
Jeff Bezos uses the two-pizza rule to decide if he will attend a meeting: He will only attend if two pizzas can feed the whole group. The basic idea is that one should consider where to draw the line for your team. If the meeting is not productive, cut back on the number of people you invite.

Meetings with too many people

To consider if a regular meeting should happen, drop them and see what happens.
A team can have a meeting every second week and still feel like they get enough face-time. While it is easy to default to a weekly meeting, we should ask ourselves if it is necessary.

Reconsidering regular meetings

A bot can replace the daily standup meeting to quickly find out want everyone on your team is doing. The bot asks all the questions that usually come up during standup, compiles them into a report and posts everything in a public channel.
You don't have to build a bot. A daily email thread or a quick post in your team chat app can let everyone know what you're up to.

Daily standups or status updates

Meetings can be very effective for building on ideas but not for working from scratch.
People should come prepared to brainstorming sessions to bounce ideas around, but it is only helpful if everyone brings a few ideas or pitches. Otherwise, people sit in awkward silence.

Brainstorming from scratch

A meeting where people can't stick to an agenda should not take place.
Meetings should be an exception, not the rule. If you can't explain in an agenda what the meeting is for, you shouldn't have one. If everything on the agenda is dealt with, you should end the meeting, even if there is time left.

Brainstorming from scratch

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