Once you have created your squad and added your members, you will be able to add admins to the squad. Being an admin of a squad will allow you to invite members, edit the squad name, change the squad image and allow you to add, remove or ban members. To add an admin, open up your squad and select the settings icon on the top right hand corner.
From here, select "Remove/Ban Squad Members".
You will then be able to select "Make Admin" next to any of your members names.