The White Sox feel they have a secret weapon in the bullpen and they aren't eager to break out Shingo Takatsu in exhibition games. That's why the Sox are planning to keep the 35-year-old Japanese relief pitcher in the dugout when they play American League teams this spring. With a funky, sidearm delivery, Takatsu has been baffling White Sox hitters during batting practice and his off-speed pitches have been particularly nasty.