One word, but not just any word, especially when it comes to leadership.
What is the objective?
Is the objective clearly defined?
Has the objective been communicated to everyone on the team?
Leaders carry the responsibility to clearly define the role and responsibilities of each individual involved in achieving the objective. They must understand their role and responsibility in order to make decisions connected to the objective.
Without clear communication of responsibilities and expectations, suspicion is created. Motives are called into question. The result is distrust.
It may be one word, but the objective touches the whole of the work.