Even if Buck Showalter remains as Mets manager — and that’s hardly a certainty — it’s a fairly safe bet changes will be occurring within the coaching staff.

The Mets tinkered last offseason, changing mostly from within after winning 101 games. New job titles were given, but the faces largely remained constant. Now with David Stearns about to enter as president of baseball operations and the Mets finishing a losing season, the opportunity for overhaul will be ripe.

Stearns first has to decide on the 67-year-old Showalter, whose contract runs through next season. Stearns could very well decide he wants his own hire to implement the front office’s strategy. Or he could defer for a year on the managerial decision, using Showalter’s vast knowledge of the organization as an asset.

The most high-profile positions behind the manager are pitching coach, hitting coach and bench coach. Jeremy Hefner, Jeremy Barnes and Eric Chavez, respectively, are in those positions and vulnerable, based on the team’s performance.