Well I certainly agree that dumping thr top 2/3rds of your bullpen isn't smart. I spent approximately 37000 words here complaining about it. Moronic decision with zero reasons forcing it. The pen wasn't even expensive.
And now, having done so, I too would rather see them restock with great young arms rather than castoffs and cheap FAs.
The problem, though, is NObody has enough great young arms to do that. Certainly not the Twins. Who are they not using?
Despite what some fans write, a bullpen isn't "the easiest thing to build."