We also have some crazier ideas we are testing such as allowing teams/businesses to do things like: - Block entire days or blocks of time from allowing meetings. - Require an agenda/purpose to a meeting 24 hours ahead of time or killing the meeting. - Setting a max time for meetings and if someone makes one for over a threshold we split it into two meetings to change the psychology and trying to finish it quickly. - Emailing the creator of the meeting the real cost of inviting so many people and asking them to verify it has value to the organization. - Tools to allow management/teams to kill off meetings that don't meet their criteria. Such as killing off all recurring meetings that are not 1v1, or setting hard limits on what % of your time is spent in meetings per job title.
Basically a lot of ways to hard enforce good meeting culture... it might sound a bit draconian but I think we have all had the pain of being in a culture that doesn't know it has a meeting problem.