From your Team Admin >> Team Members listing, you can click the gear button for a particular Coach to access and update their basic details.

You are free to update all of the coach's details until the coach accepts your invitation and registers their account. Once registered, however, they will be the only ones able to update their email address on file.

Here you'll be able to change a coach's contact and location information, and time zone. 

It's also from here that you'll be able to view and update their Coach Profile, Permissions, Enable Coach Actions in their Settings, Delete/Deactivate them, as well as view and set details of their Appointment Config (you won't be able to sync their calendars or Zoom).