The answer is: Communication.
In this scenario, Denyce used a very important kind of leadership technique, which is communication. Especially when leadership is shared, when there are other people who have to decide, too. it is necessary to know how to communicate. The proposal was on the table to be decided by the group, for this reason denyce had to ask his colleagues his ideas on the subject. An efficient leader knows how to handle all kinds of communication, such as group / departmental communication, one-to-one. As she was in a group, she used something very important in leadership, which is listening. She encouraged communication in the group, facilitating communion among them, in order to get to a common sense.