The Philadelphia Phillies have a decision to make on catcher J.T. Realmuto given his age and position, considering he is set to receive a lucrative contract in free agency. This same dilemma may apply to another potential target this offseason: George Springer.
Catchers are known to age poorly after they turn 30. While exceptions, like Yadier Molina, do exist, it is more often than not that they decline and have to switch positions to first base or designated hitter as they age. This also holds true for outfielders, who are more valuable when they can play center field but often see a defensive decline as they age.