Baseball is back! The nostalgic diamond traditions of cracker jacks, oat sodas and intricately-designed grass patterns have finally returned. Most importantly, the boys of summer are once again fine-tuning their five tools for the upcoming season.In 2016, Major League Baseball expanded its research on exit velocity and launch angle by introducing Barrels. Barrels not only analyzes the results from a hard-hit ball, but also the trajectory when bats meet the ball. The findings were startling. [...]