Symbolically, Tim Lincecum walked to the mound againstCincinnati on Saturday as the Giants' last line of defense againstthe forces of panic and despair. It's not quite fair to pile all that responsibility uponanybody's shoulders in any single game in June, but there itwas. Freddy Sanchez had just gone down to a serious shoulder injury.Buster Posey has been down and out for a few weeks, of course.