Flaws

• Arm Slot Close to Head
• Collapsing Lead Leg Upon Landing
• Early External Rotation of Shoulder
• Elbow Too High
• Extreme Trunk Tilt
• Flailing Arm Behind Back
• Flying Open (Trunk Opens Too Early)
• Getting Around Curveball
• Getting Around The Ball
• Head and Shoulder Lead The Body Forward
• Hips Not Following Through
• Lack of Trunk Rotation
• Landing on Stiff Front Leg
• Long Arming/Short Arming
• Low Elbow (Hand in Cocked Position)
• Not Finishing Changeup
• Opening Lower Half Early
• Opening Top Half Early
• Over Rotating When Loading
• Rushing Their Motion
• Rushing Top Half
• Short Arming Follow Through
• Stride Length Long/Short
• Striding Open/Closed
• Wrist or Arm Hooking (Arm Curls)

Game Result

• 1st Inning Struggles
• Falling Behind Hitters
• Getting "Rattled"
• Getting Tired Early
• Missing Arm Side
• Missing Glove Side
• Missing High
• Missing Low
• Too High a Pitch Count
• Too Many Stolen Bases
• Too Many Walks

Approach

• Approaching the Pitching Mound
• Arm Care
• Covering Bases
• Deception
• Different Arm Action/Angles
• Different Breaking Ball Grips
• Different Change Up Grips
• Different Fastball Grips
• Front Side/Glove Action
• Head Position Through Delivery
• Holding Runners
• Leg Lift
• Pick Offs
• Pre-Game Routine
• Proper Arm Slot
• Rhythm and Tempo
• Riding Back Leg/Using the Ground
• Setting Up Hitters/Pitch Selection
• Slide Step
• Upper Body Finish and Follow Through
• Varying Looks
• Varying Times
• What Hitters Are Trying to Do