I do not think you need to rebuild with this team. Boston and Dallas have shown that you can build on the fly. Sure you might have a down year or two, but if you consistently draft well, they will be fine.
Lots of guys that are in their early mid 20s that are good (Mang, Dube, Andersson, Hanafin, Kylington, Coronato, Pelletier, Ruzicka, Zary and Lindholm). We are missing that "top superstar talent" tho but have depth for days. Wolf has the potential to be that.
Then you have guys in their current primes (Huberdeau, Weegar) both who are older but not close to being old lmao and their games will age well.
As for older guys (Kadri, Tanev, Backlund, Toffoli, Markstrom), you need these veterans on every team and would rather have top end veterans who contribute to teams, than having veterans take fill in the whole bottoms 6 and take away from younger guys. Markstrom also isn't "old" for a goalie.
Backlund and Tanev are replaceable talents and will expire soon. Love Backlund, but sell high if he doesnt wanna be here.
We are not in a terrible situation as some people think. If we made the playoff this year over the Jets, nobody would be panicking.
Should focus on younger talent atm and develop them these next few years as we have a great AHL team. We have elite depth and goalie. But besides Huberdeau, we need another "elite" level player definitely. That could come from this deep draft, trade or prospects we have.