Even in this stage, there is a possibility that the team may revert back to another stage. For example, it is possible for the team to revert back to the "storming" stage if one of the members starts working independently. Or, the team could revert back to the "forming" stage if a new member joins the team. If there are significant changes that throw a wrench into the works, it is possible for the team to revert back to an earlier stage until they are able to manage through the change.