Walling In Or Walling Out?

Before I built a wall I'd ask to know
What I was walling in or walling out,
And to whom I was like to give offence.
-- Mending Wall, Robert Frost

After three frustrating seasons in their big new ballpark, where Met hitters showed their unerring penchant for warning track power, the fences are coming in.  The struggles of erstwhile sluggers David Wright and Jason Bay, who appeared to have been psyched out by the large dimensions of Citi Field, have led the team to make things a little more cozy.

Here are the details:

The walls will be uniformly lowered to eight feet, with a new wall of that height being placed in front of the current 15-foot wall in left field, which some people have come to call the Great Wall of Flushing . . . In right-center field, the fences will be moved in so the distance from home plate will be 398 feet instead of 415. And in right field, the gimmicky Mo Zone cutout will be eliminated, which will shorten the distance there to 375 feet. 

It remains to be seen whether this will help Met hitters or hurt Met pitchers.  Walling in or walling out?