I think Jensen did a fabulous job this ep. It was a rather bare-boned script, I thought, so they really had to flesh it out with action. The looks those guys gave each other, man! I felt like all the brotherly stuff they so desperately tried to kill was there. Sam is really letting Dean know that he'd not caught the real meaning of what he'd said to Dean last season with the 'letting him die' verkackte mess.