Hinske is expected to platoon with Reed Johnson in LF while also filling in at 1B/3B/DH. Gibbons wants to keep Hinske's bat in the lineup when facing right-handed pitchers, against righties last season Hinske hit .283 with 11 HR's, 55 RBI's and 29 Doubles, compare that to the .170 he hit against lefties and you can see why it will be a platoon.
The same will happen in RF as Frank Catalanotto will platoon with Alexis Rios. Oddly Rios-a right-handed hitter, hit 30 points lower against lefties than he did against righties which could mean Catalanotto may see more than his share of AB's against left-handed pitching.