After than serving more than 30 years as an MLB coach, Glenn Sherlock is out as the Mets’ catching instructor. “It is the first of a few changes coming to the coaching staff.”Sherlock had two separate stints with the Mets’ coaching staff. Under Sherlock, Mets’ catchers transitioned from the worst at controlling the running game to one of the best. When asked about the rest of the coaching staff, Stearns was a bit more vague. “We’re going to go through an evaluation of our entire coaching staff,” Stearns said.