A group leader is a person who has been granted administrative access to a particular group. Leaders are able to post cards and manage their assigned group(s) in the same capacity as the owner. 

To declare a leader in a group: 

1. Choose the group where you want to declare a leader from the groups browser. 
2. Choose Members from the Admin drop down in the upper right. 
3. To the right of the member you want to declare as leader, click on the drop-down under Status. 
4. Choose the new status of the member as Leader.