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Is touted by some as helping a pitcher change mechanics and grips quicker to help them improve several aspects of their game including velocity at times. Without coordination and the drive to improve the athleticism won't help much in that aspect. If they're planning some mechanical improvements in the offseason that athleticism would certainly come in to play. It seems to have with Paxton and Walker. Do you think less athletic versions of them would have made adjustments so quickly? They both had much more experience and failure so the drive might have come easier. And they weren't so much adjusting to league and culture at the same time like Miranda likely still is.