Do you think that there is a certain age when defenseman hit their peak, that is different from most players. Somewhere around 24 years old. I'd say that's around when Samberg really started to show his promise.
Kovacevic is a different example because he was passed over his draft year, spent 3 years in college, and then 3 on the Moose, with 4 NHL games under his belt. 25 years old, and not really showing a whole lot to that point. Maybe enough for the pressbox.
It seems like the Jets didn't want to rush Samberg to the top 4 until he was physically ready for it, and Schmidt was a good guy to insulate him with. Seems like they genuinely enjoyed playing together. Schmidt carried that added value of being a locker room guy, in a locker room that was obviously tense in the Wheeler/Buff days. Stastny spoke about it a little.
But to the point is the right age for a mature defense somewhere in the 24-33 range? And if you haven't matured enough by 24 to be knocking at the door, do you become expendable? And does that explain how guys like Fleury or Coghlan can make the team, but Heinola can't get started? Like Kovacevic and Chisholm before him. Though Chisholm didn't make it to 24.
If you have all these veteran forwards I think it's a natural inclination to have a veteran defense. Looking at Montreal with all those d prospects, they can't get it going because the leaders aren't there. So you need a mix.