“The pitchers ‘command’ means that his pitches are doing what he wants them to do. If his intent is to throw a curve ball, then the ball will curve. The pitcher has ‘control’ when the pitches he throws are staying in the strike zone like he wants. If he wants to throw a ball, then he is throwing balls.”
Command means “your curveball can curve, your breaking ball can break, your slider will slide, and your fastball is fast…. however if you can’t get it over the plate (or reasonably within range), you have no ‘control’.”