You have to consider opportunity cost. And signing a talent with a position which you have no or few options obviously has a lower opportunity cost than a position (right now 3rd base, SS, 2nd base for the Twins) where you have good, promising options. Another way of thinking about this is that it would mean the Twins would need to move Sano's position, or trade Dozier/Polanco. That is a cost because Sano has less value at 1st and you may not be able to get full return for Dozier or Polanco, when you want to move them. You can say "when you are bad you don't worry about" that, but that is just not true or realistic. Terry Ryan has to think on the margin. And on the margin, Moncada is worth at least slightly more to a team like the Yankees, Angels, or Giants that have giant gaping holes in their infield. Obviously if the Twins think the price is worth it (i.e, Moncada is clearly and significantly being undervalued by other teams), they should sign Moncada. But that is the case for any player. That's almost a tautology. I'm just pointing out that his positional value is slightly higher for other teams. It is not necessarily determinative, and I would LOVE if they signed Moncada, but it is something that matters and that should be considered, on the margin. As for Sano, we don't know how good his defense will be at 3rd yet. I agree there is some non-negligible chance he will need to move to 1st, and if the Twins are pretty sure that is the case, then definitely all the more reason to go after Moncada. But you and I don't know whether that is the case.