Try reading my post...the Cunningham thing is one of the possibilities listed.
Are you trying to say that there is no other possibility and that this scandal is definitely the reason for Goss's resignation? I don't think there's enough evidence to say that right now. Larry Johnson, who is quoted in one of your links and is a prominent Bush adminstration critic, has written that his sources say that Goss is clean on this count and might be guilty of no more than making a bad hire. While I suspect there might be more to it, I haven't seen any evidence to prove that.
Also, there are some reports that the resignation was not immediate and without notice:
http://www.tpmmuckraker.com/archives/000570.php