I have read more information in the last year on this subject than any other. There are many great things you can do to make your meetings more effective but this one thing is the most significant. Have separate meetings that cover administrative, tactical and strategic objectives and never combine them again. This Forbes post is great:
“Meetings to convey information should be different than those to get input or make decisions, which in turn should be different than those to generate breakthrough new ideas or solutions. Deliver those different outcomes with different types of meetings:
1. Level One Meetings: One-way presentations to convey information.
2. Level Two Meetings: Two-way conversations to get input and make decisions. Better approach to most meetings.
3. Level Three Meetings: Joint sense making. Curated co-creation or problem solving.