He's not a 2 pitch pitcher. He is throwing a slider, or as has been reported more of a cut fastball-slider thing, plus the changeup. As for the curve they may want him to get away from it completely for mechanics, or maybe because it was really inconsistent, or maybe they felt he couldn't command it? Whatever the reason, they have basically asked Bailey to remake himself. He's doing his best, too, which should blow away those vapid "uncoachable", "won't listen" cobwebs.