To give an employee department head permissions (which will allow them to create department goals) Admins can follow the steps below:
Step 1: Navigate to the "Company" page from the navigation bar
Step 2: Click on the "Departments" tab
Step 3: Select the department you would like to make your employee a department head of
Step 4: Click on the ellipses found to the right of "+ Add a member" on the department's page
Step 5: From the drop-down, select "Add department head"
Step 6: Search and add the employee you would like to add
For more on how Department Heads can create Department goals, go here.