I need this question answered as well!
adobe forums, only to discover Adobe doesn't allow a primary admin to ever leave. This is rather silly as people leave workplaces, they don't stay for life. An answer in a different forum on this site said one must cancel their adobe account, then start a new one. Though... Adobe doesn't allow a person to cancel their adobe account. It all must be done via Adobe customer service, which has proved non existent. There is no email address to email a request, there is a chat option which claims 24/7 chat however this functionality doesn't seem to work on my new Lenovo computer, current IE explorer running Windows 8.
Adobe - you really need to sort this out. I have left the work place where I was the Team Administrator some months ago now and now I need to be removed from that workplace account completely. Currently, I still have full access to it, which is not good from a security point of view because if I were a disgruntled ex-employee I could play havoc with my workplaces subscription and access their confidential files stored in the cloud.
Looking through the Forum, there is a great deal of conversation on this exact point. I'd suggest you answer this one, then create a sticky so people don't keep creating new threads and then see about resolving the issue so that Primary Admins can change in future, and be removed when they leave the workplace.
Well, I lost my first paragraph just now when I posted. I said
"Adobe, I have the same problem and it seems a great number of people do as well. I search the Adobe Forums, only to..."