That group would begin to take shape in 2008 with the drafting of Josi, followed by the selections of Ellis and Ekholm in 2009.
"As young guys, you looked up to players like (Suter and Weber) and you learned from them," Josi said. "They were such good players that there was a lot you could learn from them on the ice and off, especially with the way they handled themselves as professionals."
The large number of top-level defensemen in the Predators system also made sure Nashville's blueliners had to be playing at their highest level - to work their way into the lineup and to keep up with their teammates.
"I think competition is the No. 1 thing," Ekholm said. "From the first day I got drafted, we've always had really good defensemen here, starting with Shea Weber and Ryan Suter.
"I feel like if you have players like that to look up to, that makes competition within the organization very good - because everyone wants to be that good. I think that's what has been driving all of us. We try to push each other, too."
The Preds' current top four defensemen - Ekholm, Ellis, Josi and Subban - are arguably the best in the NHL, a group of players that thrive in 5-on-5, power-play or penalty-kill situations. Nashville's defensemen contributed 65 points (20 goals, 45 assists) in the Preds' first 25 games this season - despite the fact Ellis (knee) had yet to play a game.
Who knows how good the Predators' defensive corps might be if the team hadn't traded away two more blue-chip blueliners - Seth Jones and Samuel Girard? But Nashville's defensive depth allowed the Preds to make those deals, which brought first- and second-line centers Ryan Johansen and Kyle Turris in return.
Meanwhile, Josi and company are influencing the franchise's next potential star defensemen - such as 2016 first-round pick Dante Fabbro, a sophomore at Boston University.
"Nashville has always been known for its defensemen and they just keep doing a good job," Josi said. "We've got a lot of great defensemen in the minors, too, that will get their chance.
"So yes, if there's a young guy coming up, you try to take what you learned from older guys, and then try to pass it on to them."