Need some opinions on what my DD should focus on this winter with her pitching. She just turned 13 in Sept, so 1st year 14U. She throws a change, drop and screw with good command. She cruises at 55 and tops out at 57 (this is from an opposing coach with a Jugs gun, not my numbers). She has had good success this fall with the move to 43'. My question is, do we introduce another movement pitch (curve?), or focus on working on off speed fastball? Or both? She typically has a lot of movement on her pitches anyway (new catchers complain they have a hard time reading them), so that's making me lean toward the off speed. Opinions.....?