ARLINGTON, Texas – In a typical season, Corey Seager does not spend much time in the Los Angeles Dodgers dugout when his team hits. He estimates that about two-thirds of the time he is bent over a computer screen in the team’s playroom, dissecting his previous turns to make quick adjustments before his next bat.
Seager’s reliance on instant video feedback helped make him one of the league’s best card stops, a two-time All-Star that combines a .300 stroke average with incredible extra base …