For years, I have used this as an example of what looks good sometimes is not good. Obviously the performance when healthy was dominating. But the long term health of any pitcher is how efficient they get to release point. Direction, balance and front side with backside working together form the foundation of quality mechanics. In 1987, I coined the phrase, TripleSpin mechanics after reading a research paper from Chinese engineers, when they were attempting to qualify for the Olympics in baseball. There are times when we place performance above the process of moving efficiently (especially in young ballplayers) and the result can be seen in (these pics) a dominant linear pathway that does not benefit from the natural rotational processes of throwing a baseball. Hip turn, shoulder turn and arm path make up the "TripleSpin" and have to be in sync and moving in the a similar direction. Years ago, many coaches and instructors over valued the driveline in the delivery and as a result many young pitchers did not mature in the development of proper hip turn. Later on hip turn and the proper movement patterns of the hips was shown to be very important for the health of the pitcher's elbow. Research finally caught up to the real world, left behind was generation of pitchers who had been trained in the linear mechanics taught at the time. We see similar mistakes being made, now that analytics used in "pitching labs" becomes the norm. Selling out for performance at a young age is a recipe for long term health issues. How to play the game of baseball is not about re-inventing the wheel. It is about playing with rhythm and timing and taking advantage of the flow of energy through the kinetic chain. As an old scout once said to me, "Smooth gets better faster and stays healthy."