As Simon Sinek says,
A team is not a group of people who work together.
A team is a group of people who trust each other.
Above all else, trust is critical for teams to be able to work together effectively. Trust is essential if our team is going to achieve creative friction. Creative friction is what all teams should strive for and is characterized by the productive exchange of diverse ideas and opinions in a focused and unfiltered way.
If creative friction is the destination, trust is the vehicle that gets us there. There are two types of trust.
First, there's the kind of trust that allows me to feel safe with you.
Second, there's the kind of trust that assures me I can depend on you to do what you say.
One is not better than the other. One is not more important. However, the different aspects of trust are situational.
For instance, when working together on a project, one type of trust dominates. I need to depend on you to deliver on time and on budget and with the level of quality I expect. If you disappoint me, I lose trust in you. When brainstorming, the other takes precedence. If I think I am going to be mocked and bullied, if my ideas are going to be dismissed or stolen, if I am shut out of the conversation altogether, I'm going to disengage. No trust.