It seems Articulate has not created any method for an admin of a team account to change ownership of Rise content created by past team members with a license. Only the team member can currently change ownership of content, which is not helpful for employees that have already departed. It would be nice if admin accounts could actually "admin". Difficult to see how such a basic feature is missing from Articulate 360 team accounts. This feature omission has resulted in me having to rebuild content entirely. Disappointing.