Here's a clever little metric by Fangraphs's Steve Sommer that measures how effectively a team uses its relief pitchers. The question is, has the team been putting its best relievers (measured by projected ERA by CHONE) in the highest-leverage situations? Sommers ranks the relievers by projected ERA and then by the average leverage score for the game situations in which they've been inserted. Ideally, the 2 rankings would line up. Turns out the Twins are currently tied for first in this measure. The Royals and Tigers are middling, and the Indians and White Sox are tied for last. Clearly not the end-all, be-all for bullpen-usage assessment. There's no assessment of matchup effectiveness, e.g., and you would actually be penalized if you recognized that one of your pitchers was better or worse than CHONE thought they were. But interesting. What do you think? Are the Twins' relievers being used in the right situations?