# Project Team Members Projects are generally delivered by a team of people working together, each with different Roles. Project Teams assign Users to [Project Roles](urls/project_roles/index.html.md#project-roles), which are defined for the Organization. Each Role has a set of associated Permissions. A Team can be made up of different User Roles: Study Builders, Standards Managers, Technical Reviewers etc. To add or remove team members you need the **Manager** or **User** permission on the URL, or a Project Role with the **Manage Team** permission in that Project. - [Assigning Team Members to Roles](project_team_assign.html.md) - [When a User does not have a TrialGrid Account](project_team_assign.html.md#when-a-user-does-not-have-a-trialgrid-account) - [When a User already has a TrialGrid Account](project_team_assign.html.md#when-a-user-already-has-a-trialgrid-account) > **See also:** [Project Roles](urls/project_roles/index.html.md#project-roles)