Debbie Doniger is a Golf Magazine Top 100 Golf Instructor, a SiriusXM Radio Host, one of Golf Digest's Top 50 Women Instructors, and Golf Digest Best in State (Top 5) in New York Teacher. She joins On the Mark to share some of the online video golf improvement content she has been producing - 5 Drills to Better Ball-striking. The drills she explains touch on the following important golf swing elements: Swing Path, Clubhead Speed, Angle of Attack and Low-point control, Aim and Alignment, and Pre-Shot Routines.