For Marc Jacobs, its clearly told to the world that Juergen Teller is not replaceable. A best-friend relationship come into best-partner in works.
For Marc by Marc Jacobs fall/winter 2012 campaign, Aaron Vernon, Kaitlin Aas and Hailey Hasbrook pose in Teller style of contemporary "street style" photograph. 

Marc by Marc Jacobs Fall/Winter 2012 Campaign