Over the last three season, Gavin Floyd threw fastballs about half the time. Unfortunately, the 92 MPH pitch is the least effective of his five offerings:
|Opposition Batting||Fastball||Change, Cutter, Slider||Curve ball|
His curve is so effective because it moves a great deal more than expected both horizontally and vertically:
He can also put in anywhere in the strike zone.
Floyd needs his fastball to set up his other pitches. Those others are high quality enough that Gavin might want to pitch backwards sometimes, and use his cutter or change-up to set up the fastball.