Breaking down Mets’ next young pieces: Rising bats to help aces

Clockwise from top left: Gavin Cecchini, Dilson Herrera and Brandon NimmoThe Mets’ rise felt a bit like “The Avengers,” didn’t it? Introduce one or more new heroes a year — shoot, one of them even goes by “Thor” — until they all band together for the ultimate adventure.

Now, in order to sustain this saga, the defending National League champions must churn out more new protagonists, either to join in more conquests or to get exchanged for other contributors. It’s a task that becomes all the more imperative if, as is every indication, this endeavor won’t go mega-budget.

“This is what we hope happens,” Paul DePodesta, the Mets’ vice president of player development and amateur scouting, said in a…