
J.D. Martinez would represent a competitive advantage among a group of historically weak DHs.
(Photo:
Keith Allison)
Jeff Sullivan wrote last week that the DH just had its worst season. That was the main point of his piece. Along the way, though, Jeff also did some myth-busting with regard to how the DH spot is being utilized these days. There’s an emergent belief that the DH has become a revolving door on many clubs, used more often to keep players fresh and create roster flexibility, and less often to simply give a lone, defensively challenged hitter a full complement of at-bats.
What Jeff found contradicts this belief, however. Last season, the top-15 designated hitters in the AL accounted for 64% of plate appearance. Since 1973, though, the average for primary DHs is just 56%.
From Sullivan’s piece:

So designated hitters are hitting worse than ever not because of a transformation of the role itself but just because they’re hitting worse than ever.
While the collective production of DHs might improve in 2018, it’s still a bleak landscape, with only seven AL teams projected to produce a win or better from the position. The Mariners (3.0 WAR), Yankees (2.6), Indians (2.4), Athletics (1.8), and Rangers (1.2) account for the top-five DH teams. Their respective depth charts at the position are led by Nelson Cruz, Brett Gardner, Khris Davis, Edwin Encarnacion, and Shin-Soo Choo. The average age of those players is 34.2 years. While the DH position often allows for aging bats with diminishing defense to find their way into the lineup, there is hardly a youth movement occurring at the position. It’s possible the position is even weaker than in 2017.
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