Nov 29 2015 08:37 PM
It's a coupla months old, but I just stumbled upon this FanGraphs article, which suggests that a big part of the success for the Mets pitching staff is that they're throwing a pitch not readily available to pitchers on other teams, a slider with a little less concern for break and a little more for power, tight spin, and location.
[list]“Dan Warthen helped me out with the grip during Spring Training. I threw it last year, but I didn’t really know how to throw a slider.” — Matt Harvey, 2012
“When I came here in September last year, Dan Warthen showed me how to throw a slider,” said a beaming Mejia, back in a major league clubhouse. “Then I threw it in winter ball. And now I throw it perfect.” — Jenrry Mejia, 2013
“[It has] small, quick, movement at the end. ... [I have] more command of it. ... [You throw it like a fastball, and] at the last point you just flick your fingers a little.” — Jeurys Famila, 2015
“I played with it a little bit to pick up the RPMs on my curveball.” — Noah Syndergaard, non-user, 2015[/list:u]
Jacob deGrom, before and after.