See, this is where this stuff starts to breakdown. You can toss extensions all over the place but doing so for unproven, shakey, or still developing players takes on a tremendous amount of risk. Should the Twins consider this option? Absolutely, if the stars line up and it makes sense for everyone - go nuts. But, as far as I can tell, this has happened for a significant player only twice in league history and one of those two guys is another roiding error away from being an awful investment. The stars don't align often, it shouldn't be planned on nor advocated as a common strategy IMO.