True, the role lefty specialists has been diminished by the 3 batter rule, but there is certainly a place for a quality lefty (or two) in the pen. It's still quite helpful to have a reliable lefty to face a Harper, Soto, Olson, Freeman, Bellinger, Alvarez, Ohtani, etc. in a big spot with the game on the line. It's not like teams are going to pinch hit for these sluggers.