The San Francisco Giants would like to add to their outfield, which means mainstays like Hunter Pence could become part-time players.

The Giants are already planning to move Denard Span from center to left. Bobby Evans said Tuesday that Pence could have a more limited role depending on any additions.

"Our focus is center field, and we've got to do everything we can to upgrade the defense," Evans said. "If that moves Pence into more of a part-time role, we have to be prepared for that.

"Hunter's not a part-time kind of guy, but we have to do everything we can to be better out there -- and be open-minded."