Which receivers take the field on the first play (or series) against the Packers?
I think it will be Crabtree and Williams. (I would have said Ginn but he is injured.)
I think the 49ers are "playing possum" with Moss. They know opposing defenses will be on alert to Moss and Manningham since they didn't get any real film on them in the preseason. I suspect they want the opposing defense to get into the game before they bring in Moss. And I would expect Moss to be a decoy and run some shallow routes to lull the defense at first.
I'd love to see Moss and Manningham come in the first play and start gouging the defense. But that just doesn't seem to be Harbaugh's personality. My fear is that playing it close to the vest against the Packers offense could put us in a hole early.