And why do they need to rebuild?

Why would they want to? They have played pretty well in the playoffs/play in round.

Those first two returns are not happening in a million years

Do u see this core winning a cup?

This core can absolutely win it all, well built, loads of top end talent, it's time for CBJ to move on from Torts he has a shelf life and has historically become a problem with players, this where the trade rumours stem from, he's hard very hard to play for

Buffalo trade is somewhat fair, the other 2 are pretty lopsided towards Columbus

Lol since when did pld become eichel?
You are looking more at a return of Chytil and lundkvist than kakko and Schneider.