Offering his baseball advice to what he assumed was a player in need, Ryan Wargel gave his thoughts on Twitter to how a batter could fix his swing. “Pitching machine swing,” said Wargel, who coaches ...

When baseball fans watch a batter strike out with runners in scoring position, the reaction is often immediate: Shorten the swing. Put the ball in play. Stop swinging for the fences, they lament. But ...