To give someone administrative access to your project:
Click on the Admins tab on your project page, then click on the + New member button.
Type in your colleague's email address, select which permission level you would like them to have, and click submit!
An administrator can make changes to a project and will be a point of contact for students. They will be able to access the students teams, view their submissions, and change the settings for your project.
As an alternative, you can add colleagues as a judge. A judge can provide feedback, view submissions, and interact with student teams. Judges cannot make changes to the project itself.