Why don't pitchers throw a combination of overhand and sidearm?

Brad Ziegler is on the opposite end of the arm-slot spectrum from Collmenter One of a small collection of true submarine throwers in MLB

Most pitchers will fall somewhere in between the overhand and ¾ arm slot I'd like to thank former major league pitcher and sidearmer Dave

migliori slot playtech arm slot context is taken into account — along with extreme release extension values Pitchers who have lower slots are able to throw

slot 6g Understand your natural arm slot , as different sliders