As soon as Hunter Pence failed to make what would have been a tough sliding catch on Juan Rivera's eighth-inning double Saturday, a key play in the Giants' 3-2 loss, Twitter lit up with "he's no Nate" comments, which is a bit unfair. Nate Schierholtz played right field at AT&T Park for parts or all of six seasons and knew every inch of the grass, how balls react to the wind, and how much room he had between him and the wall or the bullpen mounds. Pence joined the Giants less than six weeks ago.