Many departments, teams, and staff groups on campus make use of shared documents, folders and Shared (used to be Team) Drives in Google. These are designed for you and your team to manage your own sharing and rights. If there are Google drive resources you need access to, ask the leader or other members of the team who on Shared drive has Manager rights. Anyone with Manager rights can add new members.
Members of a Shared drive can see who has Manager rights by going to Google Drive. Open Shared drives, then the drive in question. Click the name of the drive near the top of the page to get a drop down.
Select View members from the list. You will see a list of members with their role on the right. Look for members who have the role "Manager." They can add new members, or remove members.
In cases where the owner or creator of the folder or Team Drive has left GISD, Technology can help get the documents moved to a new owner.
Here are some help resources from Google: