Hello pegasusimagery,
Welcome to the QuickBooks Community. The program is designed to help you streamline your work using the powerful features offered in the program. I'll be glad to steer you in the right direction so you can change your team member's email with ease.
Based on what you've described, I recommend contacting our QuickBooks Time support team for expert advice on this. You can get in touch with the team using this link here. You're more than welcome to keep me posted on how you make out. I'll be one message away in case you need anything else.