A team member has left my downline. Why do I still see them on my team pages?

Team members have to manually be deleted from the team pages.  Changing the contact type on the Contact List page will not automatically remove them. 

The reason for this is that connections to team member's accounts are managed on the team page.  If you were to change a team member's contact type by mistake and the system deleted them from the team page, that would also disconnect your accounts and they would no longer be able to see your shared materials.