Mets’ Taijuan Walker using analytics to become better pitcher

PORT ST. LUCIE — Taijuan Walker used his rehab from Tommy John surgery, over almost two entire seasons, to reevaluate his pitching identity. To that point, leading into 2018 when he tore an elbow ligament with the Diamondbacks, the Mets’ newest starting pitching addition relied on raw heat, which often meant elevated pitch counts. He…