Once your Review Teams have been created you will then need to add reviewers to your teams. This article will walk through how to add and remove reviewers to and from a review team.
These steps would need to be done individually for each reviewer.
Select the Team that the reviewer is currently a member of.
Click Done.
Locate the user you wish to remove from the reviewer team.
Hover your cursor over the user and click on the More Options icon in the far right column.
Click Remove from Team.
Optional: Select Unassign them from all applications assigned to this team.
Click Remove.
Checking Unassign them from all applications assigned to this team will permanently delete any reviews that the reviewer has completed for applications assigned to the team.