Why not use players with defensive value in platoon roles? Kratz is a right-handed bat who also happens to bethe team's best catcher and he's had to spend time in AAA while the team experiments with the likes of Moises Sierra and Brad Glenn, players who are worthless on either side of the ball. Maybe Francoeur has enough of a platoon split to be an improvement over those worthless players because he could do one thing relatively well but ideally you fill your bench with players who can do more than one thing.