During this offseason, the Mets have certainly made splashes hiring David Wright, John Franco, Al Leiter, and now Jessica Mendoza in a player development role for the organization. These are all intelligent baseball people, who if utilized properly, can have a profound impact upon the Mets organization.

Seeing how three of these hires were popular Mets players, the team should consider doing the same and bringing back Johan Santana.

There are plenty of superficial reasons why the Mets should bring Santana back to New York. He is the only pitcher in Mets history to pitch a no-hitter. His 2008 season was great, and he would pitch the last great game seen at Shea Stadium. To this day, he remains popular with the fanbase. All that said, the real reason the Mets should bring back Santana is his change-up.

Johan Santana, Changeup release (scratchtreel/@coachbethards request). #SRGif pic.twitter.com/JCZtSUOaUS

— Rob Friedman (@PitchingNinja) May 29, 2017

Santana’s changeup was a truly great pitch. It was a pitch he used to win two Cy Young awards in what was a borderline Hall of Fame career. It was a pitch which earned him a massive contract with the Mets. It was the final pitch he threw to strike out David Freese to end his no-hitter. It was the pitch he taught to Jacob deGrom, which forever changed the trajectory of deGrom’s career.

Back in 2011, deGrom was rehabilitating from Tommy John surgery, and Santana was rehabilitating from shoulder surgery. As the two worked at the team’s rehabilitation facility in Port St. Lucie, their paths would cross. As reported by the New York Times, Santana would teach deGrom the pitch that made Santana a Cy Young award winner and would one day make help make deGrom one as well:

[W]hile doing his rehabilitation work at the Mets’ rehabilitation facility in Port St. Lucie, Fla., deGrom fell into conversation with Johan Santana, the Mets’ injured ace. Santana proceeded to teach deGrom his famous changeup, how to grip the ball, how it should look the same as a fastball coming out of his hand. Santana told him to practice throwing at 180 feet. If he threw it correctly, the ball would fall well short.

As noted by the Fangraphs, deGrom’s changeup was the second most valuable changeup in all of baseball last year making it his best pitch last year. According to Brooks Baseball, opposing batters hit just .139 off of his changeup. The pitch is a large reason why deGrom was second in the league in getting batters to swing at pitches outside of the strike zone, and why he had the fifth most swings and misses against him.

Much of what deGrom accomplished began when he was rehabbing at the same time as Santana. If the Mets were wise, they would bring back Santana to have a profound impact on someone else’s career. He may help Corey Oswalt or Chris Flexen go to that next level. It’s possible David Peterson, Anthony Kay, and Thomas Szapucki each take a huge step forward in their development.

Perhaps, there is some pitching prospect who is not well known at this time who could learn Santana’s changeup and have his career take off. After all, that’s what happened to converted shortstop and former ninth round pick Jacob deGrom.