Statcast bat tracking stats have arrived

The two big stats are bat speed and squareed up pitches.  They give you a squared-up when you achieve an exit velocity at least 80% of the maximum physically possible EV based on bat speed and pitch speed.  Faster bat speed is better, but it's negatively correlated with squaring the ball up.  And then Juan Soto is near the top of both leaderboards

Red Sox related - surprised Devers does merely pretty good.  Romy has great metrics.  Vaughn Grissom swings a slow bat.

The Driveline philosophy is the three things that matter are bat speed, smash factor (basically squaring it up) and swing decisions, and swing decisions are a distant third.