If you didn't play SS, you shouldn't be able to turn a dp. If you didn't play 2b, you shouldn't be able to turn a dp. As far as Glaus is concerned, there are limitations on platoon hitting. Once you've exhausted you ABs, your effectiveness goes way down. The same should happen with out of position players. If he only played 2 inninngs at SS, after 2 innings, Glaus at SS should look like Piazza at SS.