Usernames and passwords are dangerous things to be tossing around. There is usually a better way, whether it is using a password manager, or delegating access to your account you have to use a system that keeps your credentials safe.
Whatever you do, never send usernames and password in emails, chats, or documents.
As a growing development team, we share a password Vault with all of our customers to safely communicate passwords within a secure system.
When it is available, delegation to an account is a much better system. GoDaddy supports account delegation. Here’s a little tutorial for adding your development team as a delegate on your GoDaddy account: