Agree with you on Cashman, but these guys didn’t make it to the big leagues by winning a lottery. They made it into the majors because they are or were good enough to be professional ball players. Even pros can however pick up bad habits at the plate and can allow an average pitcher at best like Matt Harvey to look like Tom Seaver. Why all of a sudden many many times does a traded player, who was hitting 235 all of a sudden start hitting the cover off the ball for his new team???? It’s a new team with coaches who can recognize what he might be doing wrong with his stance, his swing, holding the bat, stepping into the pitch, using too much pine tar, etc. I played D1 baseball and coaches teach all the time. Yankees haven’t had decent coaches since Mel Stot and Zimmer and Mattingly. Boone needs to go, along with most of the present coaching crew.
Here’s a good article on the state of coaching in Major League Baseball..........
To combat baseball's new era of hitting, teams are turning to a specific profile for their hitting coaches to fit.
www.google.com