Rays’ Historically Heavy Bullpen Usage Key to Relevance
The Tampa Bay Rays are taking a relatively novel approach to divvying up innings between starters and relievers. Injuries have robbed the team of Alex Cobb for the season, Matt Moore and Drew Smyly for much of the year, and Jake Odorizzi for a time as well. Despite those problems, the team climbed to a 41-32 record a few weeks ago thanks to a splendid season from Chris Archer, good seasons from Odorizzi, Nate Karns — and even Erasmo Ramirez has pitched in to help the team form a solid rotation. The team has slid back to the pack in the difficult-to-decipher American League East, but still finds itself just two games back of the Yankees after losing nine of their past 12 games. Rays’ starters have been effective, but have not pitched deep into games, leaving the outcome of many games to a set of inexperienced relievers who have been shuffled between the big-league club and the minors all season long.
The Rays’ strategy appeared to be related to to two potential issues. First, the rotation was so depleted at the beginning of the year, they twice pitched bullpen games, letting Steve Geltz pitch a couple innings until his spot in the batting order. The other problem is that the deeper pitchers tend to pitch into games, the worse they tend to do. Getting a pitcher out of the game after two times through the lineup can limit damage to the starters and it can work so long as the team has a deep and effective bullpen. The Rays’ starters have averaged just 89 pitches per start, the fewest in MLB. Ted Berg noted a few weeks ago that the Rays were on pace for the second-lowest total of plate appearances (to the 2012 Colorado Rockies, who experimented with a four-man rotation) three times through the lineup in the last decade.
The graph below shows innings pitched by every bullpen this season.
