A fun drill to work on location, is to have the pitcher get set, look at the target, close her eyes and pitch. Try it a few times. She should begin to start hitting her spots.
There are a couple things to look at if missing consistently high. First, if she is trying to "guide" or "aim" the ball, she might be leaning forward which in turn will bring her release too high. Another is to shorten her stride just a hair. If her stride is too long it will pull her release too high as well. Hope these tips help!
Heather
College Sports Recruiting
Are you a step style instructor, or leap and drag?
Hal