As far as Nylander goes he fits every categories of our needs.
1- Right handed center
2- Young (around the same age of our new core) and at the start of his peak.
3 - Productive and talented, he was great in the AHL and played very good at the NHL for 2 years.
4 - He is a fast skater
5 - He has shown he can score goals which we lacking right now.
6 - Potential to get better
We blasted Bergevin in the past for not acquiring a top center and now there might be one available right now in the market and we are all acting like... well we have Poehling (not more talented than Nylander?), Domi (He has looked great at center but can he sustains that over year? not sure), Suzuki (who could play winger in the pro and still unproven) and Kotkaniemi (the kid is 18 years old and has a lot to learn).
Nylander would instantly become our best center and move down everybody in their right chair.
Nylander (1st center), Domi (2nd center), Danault (3rd center), Plekanec/Peca (4th center) and Kotkaniemi can develop further at the AHL level.
I might be too high on Brook, Juulsen, Fleury but I could definately see them replacing the impact of Petry/Weber in a not so distant future.