For players development, few are mentioning it but Tomas Plekanec was a model of player development for a center (at least, for a center that isn't some gigantic superstar). Yeah, some like Suzuki can hit the ground running, but as soon as it,s clear the player isn't going to be that, just use the Plekanec model.
Plekanec spent three years in Hamilton. Then he came to Montreal and it took three years for him to become the #1 center between Andrei Kostitsyn and Alex Kovalev (though it was more of a 1A/1B arrangement with Saku Koivu). But in almost every year, Plekanec was progressing through the lineup (and probably in Hamilton too). But he also benefitted from not being a 1st rounder; easier to work on yoruself in the minors when you're an obscure 3rd rounder progressing slowly but surely.
Hopefully Ryan Poehling will benefit from last season and be more assertive in his play.