with Chris Sinacori, Peoria Mariners Pitching Coach (Seattle Mariners Rookie League affiliate); former Wake Forest University Pitching Coach; former Arizona State University Pitching Coach Every coach knows that the key to successful pitching is the use of proper mechanics. The mechanics demonstrated by Coach Sinacori in this video will give your pitcher a clean and solid delivery, increase velocity, and limit the chance of injury. This video teaches the appropriate mechanics for the full wind up delivery and out of the stretch. Sinacori also reveals drills that can be used individually or as a team to implement these mechanics. These are the same drills used by the Arizona State pitching staff, runner-up in the 1998 college world series. These drills include rotation drills, which focus on keeping balance on the plate, mirror drills, which can help a pitcher with their overall delivery, and stride trainer drills, which solidify a pitcher's approach to the plate. The pitching mechanics stressed here will polish your delivery and take you to a level in pitching that you have not imagined! 47 minutes. 2004.