Another way to look at it is how departing players have performed after they left. It's a pretty mixed bag and they have done a good job getting out of the way of clearly declining players like Donaldson and Cruz. Two that standout are Gary Sanchez and Luis Arraez. Polar opposites as one on the down side and the other in the up swing of his career but both are excellent this year after leaving the org.
Arraez may be just getting better but Sanchez revitalized his career. No telling what the difference is but we really haven't seen the Twins do that with an incoming player, mostly the other way. I can't think of a single hitter that we can look at and say, man, the Twins sure unlocked his potential, and that's kinda sad. Would Steer and CES look the same in a Twins uni? I have my doubts.