It’s very useful to make explicit what we think makes a good team, and decide what kind of a team we want to be ourselves.
Here’s an exercise I have been running on most of my Leading Teams (link in Finnish) courses. I have used this to open the course.
Here are the questions:
“Think about a good team you have been part of. What was it like?” or “Think about when you experienced good leadership. What was it like?”
I let each participant choose one of the questions, and ask them to interview two-three other people about the question. I usually instruct them to change pairs, as the discussions are so interesting that they get carried away a bit.
After discussing in pairs, I ask the whole group to start shout out features that were present when they were in a good team. After that they get to shout out the features of good leadership. I collect the results in a flip chart like this.

After collecting the word clouds you can decide as a team which features of a good team are the most important to you. After that you can set some concrete actions towards those goals.
This exercise has brought focus to teams that are struggling a bit on where to improve.