I think two different levels in Rule 5. How probable is it that you might lose a guy? How much risk if you do, long term?
I think that Correa is variably high probability of getting selected.
But I'm not sure the long-term impact of losing a wild reliever is maybe as severe as if you lose a long-term starter? I'm kinda thinking that *IF* you were to lose Franklin, Thompson, or Devers, any of those have a possibility of turning into long-term good rotation starters. *IF* one of Franklin/Devers/Thompson gets taken, kept, *and* hypothetically (improbably) works out to hit their ceilings as good rotation guys, that might go down in memory as a classic blunder. More so than if Correa gets taken and emerges as a good-stuff wild reliever.
We'll probably always have a supply of good-stuff wildman relievers in the pipe.
Hopefully we lose none of them, and they all turn into quality useful major leaguers for the Cubs.