ST. LOUIS — If linebackers start leaning forward before the snap to stop the run, football calls play action and throws downfield. If a center gets double-teamed in the post, basketball passes it out and shoots from the perimeter. If infielders and outfielders stack up where they believe a hitter’s swing is most likely to send the ball, hitters complain until baseball changes the rules. OK, that’s unfair. It’s a heck of a lot harder to hit a baseball than it is to find an open receiver or swish a 3-pointer. You have to be a remarkable athlete to hit a baseball well enough to play in the majors…