On the star-studded roster the Mets will trot out for Opening Day on March 30 in Miami, there is no one better suited to understand just how far things have come for this franchise than Brandon Nimmo.

Now the Mets’ longest-tenured player, Nimmo entered the organization in the summer of 2011. The next offseason, the Mets spent $17.8 million combined on free agents Frank Francisco, Jon Rauch, Ronny Cedeno and Scott Hairston, lost Jose Reyes to the Marlins and lowered their payroll by $50 million.

Five years later was the offseason after Nimmo made his big league debut and the Mets lost in the NL wild-card game. Their big splash was re-signing Yoenis Cespedes on a four-year, $110 million deal — the second-largest free-agent deal in franchise history at the time — while also bringing back Neil Walker, Jerry Blevins and Fernando Salas.

Now? The Mets are living in a completely different world.