I believe that both Obama’s new Chief of staff and the National Security Adviser, Donilon, have close ties to Biden so the groundwork is already laid for Biden to step in
Adding to it ...
http://www.freerepublic.com/focus/f-news/2625151/posts
(John) Kerry completes six-nation trip (vying for Sec. of State?)
Boston Globe ^ | November 10, 2010 | Farah Stockman
... Kerry, who is widely believed to want the job of Secretary of State, ...