What's with centerfield?

While attending the first game with reporter, Chris Haft, he shared a piece of information with me that I found extremely interesting.  Before the area behind center field was closed off and housed concession stands but, after many balls began to drop there it was thought that if the wall was opened up outfielders would be able to catch them. This speculation even led some to believe that more balls were now gravitating in that direction more so than in the past. But, after hearing from team manager, Bruce Bochy I'm not convinced that opening the wall has changed anything. According to Haft who spoke with outfielder, Angel Pagan, he has not yet seen a difference between the previously closed off wall and the new opening.

With all of the evidence that I have been provided with I still have two main questions— how much evidence did the Giants actually have when they decided to make this change and does the bullpen have anything to do with the direction of the ball?  Well, I believe that the direction of the ball certainly depends on who is on the mound. Maybe when the staff noticed that balls began drifting towards centerfield happened to be a game where there was a left and a right handed pitcher. Also, I believe that the Giants staff did not have sufficient statistical evidence to move the wall back because it was done within the last couple of games.