Defensemen are a dime a dozen in the NHL. Most teams go through a handful of them without ever truly finding one that can be designated as having reached the status of "elite".
Many will be able to garner the services of a top-end defenseman or two through the glorious window of free agency, usually paying out the nose to do so.
Fewer will have the opportunity to draft and develop elite-level defensemen. A level of talent that sometimes can be viewed as generational once the named prospect reaches the peak of their abilities.
Luckily for Nashville, they've been such a team.