It's been likened to a pasture and a parking lot. The outfield surface at Wrigley Field has been taking hits from opposing players because of its rough patches, small holes and uneven terrain. The Cubs plan to redo the playing surface in the offseason, but should they get into the playoffs, there could be questions about safety in the outfield. "There's nothing you can do since they had that -- what do you call it? -- concert. Since they had the concert, it's been a little rough out there," Cubs manager Lou Piniella said Saturday. The outfield grass was beaten down when two Police concerts were held in early July at the second oldest ballpark in the majors.