Look at head and upper body sway first. Keep it quiet in the hips. A big problem can always stem from the lower body getting too active and short pitch shots are delicate, so treat them as such...

If that is good, look at the hands/arms getting too steep, causing a big out-to-in path. That is hard to hit just right...it's good for sand shots, but there you get lots of splash from teh sand. In the fairway, you need to be right on the mark. To reduce the steepness, work on a 3/4 swing that does not set and release the wrists. You will feel like you won't hit it anywhere, but this shallows the angle to get you the initial feel. When that starts to click, introduce the hands slightly.

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I'm a golfaholic, no question about that. Counseling wouldn't help me. They'd have to put me in prison, and then I'd talk the warden into building a hole or two and teach him how to play. ~Lee Trevino