Mookie Betts made the catch in Game 4 of the World Series last October. And this week, Major League Baseball ruled the New York Yankees’ fans who tried interfering with him out, for good.

Two years ago, Diego Cartaya was the crown jewel of the Dodgers’ highly touted farm system. On Thursday, he quietly departed the organization without ever coming close to reaching the majors.

While the Dodgers will be sacrificing potential offensive upside in trading Gavin Lux, they are banking on the overall ...