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Phillies Reliever Usage, Graphically
Posted By Bill Baer On May 8, 2012 @ 7:00 am In Graphs,MLB,Philadelphia Phillies,Sabermetrics | 11 Comments
Much has been made about the sub-optimal usage of relievers by manager Charlie Manuel lately. The Phillies are 0-4 in extra-inning games and in each of those four games, their $50 million reliever Jonathan Papelbon was never used. The Phillies also lost in nine innings on April 8 in Pittsburgh when Papelbon could have — and some would argue should have — been used. How, exactly, have the relievers been applied, though?
I arranged each plate appearance for each Phillies reliever from the beginning of the season through last night and created bar graphs indicating the leverage index. (Last night’s data not included as this post was compiled prior to the game. Unfortunately.)
As you can see, Jonathan Papelbon
has had yet to face a batter with a leverage index greater than 4.00. The only other relievers in that same group are Jose Contreras, Joe Savery, and Mike Stutes. In fact, Papelbon’s highest-leverage plate appearance (3.78 on April 12) is the 20th-highest among Phillies relievers. The 20 ahead of him have all come on the road, however, and due to Manuel’s insistence that closers cannot be used in tie games on the road, he has been left to rot in the bullpen while inferior relievers stood on the mound only for the Phillies to lose the game.
Note: A lower-case b indicates the stat before the PA was started and a lower-case a indicates the stat after the PA was completed. LI stands for Leverage Index and HWE stands for the home team’s Win Expectancy.
The following chart shows the percentage of a reliever’s own total PA have come in each leverage bucket. Two out of every three (66%) of Jonathan Papelbon’s PA have come with the leverage index under 1.00. As the leverage goes up, Papelbon’s appearance percentage goes from 66% to 20% to 7% to 7%.
This chart shows each reliever’s share within each leverage bucket. Jonathan Papelbon has had 30% of the Phillies’ bullpen’s PA in the 0-0.99 and 1-1.99 buckets.
Papelbon has shown to be the Phillies’ best reliever so far, averaging more than a strikeout per inning and more than three strikeouts for every walk. Why one wouldn’t consistently use him in the most important of situations is mind-boggling.
Regarding last night’s debacle involving Papelbon, my only comment is a link to this Wikipedia entry.
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