To add an Administrator to your account, go to Account - Users and click the "..." menu next to the name of the user you want to add as an Administrator, and select "Edit." Scroll to the bottom of the user page and toggle the "Account Administrator" option and select "Save changes."
Administrators can:
Create, edit, and delete teams
Create, edit, and delete users
Activate and deactivate users across all teams
Edit account billing information
Access and modify team settings for any team
Modify team visibility
View any team, even if they are not a member and it's private
Designate other account Administrators
Administrators cannot:
Delete themselves
Remove themselves as account administrators
For access to manage team-level settings but not account and billing, use the Team Lead option.