I'm sorry but I don't count the goals to show how well or not Pedro, and for that matter Villa, played. This team scores plenty of damn goals and there's more to that position then banging them in, like positioning, passing, movement and defensive cover. none of those things slacked off when they weren't scoring, so that doesn't worry me at all. And lest you forget we have a goal machine called messi who's pretty good at picking up the slack.
And to single out those two for under performing in the second half of the season is unfair, IMO. the entire team had an immense drop off after the crazy amount of goals they were putting away in the first half and pedro was battling back from injury