Well since you've looked at this more closely than I have, of last 25 Twins' 1st round picks, how many had a meaningful MLB career? Is this a good rate relative to other teams?
Duffey looked great! I imagine that spin rate reading machine or whatever it's called might work some magic on him. Get him down to FB / curve, with a few different locations, and he might be a good bullpen arm.
Also, they shoudl paint roadrunner/WilECoyote-style outlines on the outfield wall for every time Buxton has slammed into that thing. Also, they should get some 3M engineers working on padding it to the maximum extent legally possible.