As the highest energy collider in the world, the Tevatron has been the centerpiece of Fermilab’s physics program for more than 20 years.  This will change with the imminent startup of CERN’s LHC.  This talk will describe how the lab plans to redefine its mission in terms of the “intensity frontier,” with a program focusing on neutrino physics, precision measurements and cutting edge accelerator R & D.  An intermediate program will be presented based on re-tasking existing accelerator rings during the next decade, as will the larger goal of a program centered new high intensity proton linac, currently referred to as, “Project X.”