not possible to add Google Group to Blogger

One of the great things about Google services is the ease with which entire Google Groups can be added to other Google services.  Sharing documents with a Google Group addresses automatically provides access to the entire group, same with a Google Site or calendar.  Unfortunately, it's not possible to do a similar thing to add authors to a team blog in Blogger. http://www.google.com/support/forum/p/blogger/thread?tid=6274ccbd0de9bb13&hl=en