When Should a Manager Use a Defensive Replacement?
Protecting a lead often starts with protecting the field.
A defensive replacement usually enters after the team has already built an advantage. At that point, preventing runs may provide more value than generating additional offense.
The move often involves replacing a strong hitter who offers limited defensive range with a player known for fielding ability, speed, or arm strength.
Outfield defense is a common area for these substitutions because range can significantly influence whether fly balls become outs.
Managers must balance the defensive improvement against the possibility of needing offense later. The decision reflects a shift in priorities from scoring runs to preserving them.
