Sometimes the best approach is common sense.
Mariners reliever Nick Vincent took a beating at times early last season when left-handed hitters teed off on his two-seam fastball.
Solution?
Stop throwing it.
Vincent allowed just two home runs over his final 20 appearances. Neither one was to a left-handed hitter.
"It pretty much means I just didn’t leave pitches down the middle for them to hit," he explained. "I just made bad pitches in the beginning of the season. They hit them.
"It was lefties in the bottom of the lineup.