538.com piece sez that managers are getting smarter about using their bullpen. Excerpt: Even in Major League Baseball’s enlightened sabermetric age, you’re liable to see at least one instance of obvious bullpen mismanagement on any given night. Such blunders usually come in the form of a manager hewing too closely to traditional inning-based roles — “saving” bullpen aces for a meaningless ninth frame when the game is on the line earlier, or bringing in a closer to hold a three-run lead in the ninth when a rookie would do just fine. These tactical errors can be frustrating to watch, as tenuous leads become deficits while the team’s best relievers are sitting in the bullpen waiting for “their” inning. Logic and hard-won experience have shown that a team’s best relievers should pitch during the most important junctures of a game, regardless of when those moments occur. It’s a philosophy that saber-savvy analysts inside and outside the game have been pushing for some time now. And despite their occasional lapses in judgment, it appears that managers across the league, in addition to deploying some of the best bullpens ever in an absolute sense, are getting much better at optimally deploying their relievers according to skill, regardless of their age or experience. To measure this, .... The article then demonstrates how it measured to arrive at it conclusion. All data is league-aggregate: the data is not subdivided for each team or manager. Personally, I'd suspect that Collins's bullpen use drags the data down a bit. I never liked Terry's bullpen use and think that it's prolly his worst area managing -- tactics-wise. Terry fits that manager described in the first paragraph from the 538 piece, posted above in the quote box -- to a "tee". OTOH, it's kinda fun to see Familia's saves totals climb past Mets record territory and close in on the '50s. Read it all at http://fivethirtyeight.com/features/baseball-managers-are-getting-smarter-about-handling-their-bullpens/