When a team’s biggest weakness is the last reliever out of the bullpen, it’s usually a sign of a pretty good team. Most of the time, if you’re using the back of your bullpen, you’re either up or down by a significant margin. The Red Sox have been great at finding times to use the back of the bullpen, but those pitchers haven’t held up their end of the bargain.

Jorge Alcala, Chris Murphy, and now Isaiah Campbell have all struggled late in games, forcing Garrett Whitlock and Aroldis Chapman to make appearances they otherwise shouldn’t have. Most recently, Isaiah Campbell’s late-game blow-up brought Chapman into the game, causing the closer to be unavailable the next day. The Marlins scored three runs in the ninth, and the Red Sox lost the game.

Fortunately, it’s easy to find a new mop-up m

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