That's the optimistic view, yes. The prospect pool has certainly improved compared to a few years ago. But this isn't a situation where the team needs a new set of young/cheap players to augment an already established core. This is a situation where the team, well, needs a brand new core. This team is about to lose its franchise player, it needs someone else to build the team around.
If we're incredibly lucky, we have two potential core candidates in Cristall and Leonard. But that's banking on best case scenarios for each of them. I'm firmly in the Cristall believer camp, but thinking he's going to be the kind of player that we can build a franchise around is an incredibly optimistic view. The rest of that batch of secondary pieces, at best. The rest aren't the type of players that represent the core of a contender. Heck, Alexeyev isn't even guaranteed to stick in the NHL beyond a fringe role. And both Strome and Milano are already 27 years old, and were cast offs from teams even worse than we are. While they can both be useful players (and Strome has been some incredible free value), they are far cries away from their peers when it comes to contending teams.