Hey Christian, how are you? I mostly work with smaller teams, never more than 12 people when I can, but every now and then a larger group comes in. This is how I’ve approached those workshops, after consulting with trainers and more Sr. facilitators:
1. Try to recruit at least 1 more facilitator to keep that 1-to-12 ratio when possible.
2. Definitely break them up. With that number, I’d do at least 2 tables (1 per facilitator), or if you want to do smaller tables, you might need to consider more facilitators. Also keep in mind that having all 23 people pay attention to each model is not practical. Smaller tables help. Setting up teams will maximize the attention they will be able to pay here.
3. Spend the proper amount of time on the skill builds part, but don’t go into rabbit holes. Move fast.
4. It seems the objective of the meeting is well-defined. Make sure your stake-holders (or who is actually hiring you) is 100% aware of possible outcomes here.
5. With large crowds, timing is everything. With longer activities, I try to keep each person’s time (build, explain, reflect) below the 5′ threshold.
6. And finally…consider adding another day.