Polanco (who inexplicably had his options burned early to sit on the bench),
Polanco's situation was caused by the rules of baseball. He was signed young, and was added to the 40-man roster when he became Rule-5 eligible. Perhaps no team would have taken him, but if some bottom-feeder team had, and then used 3 additional years of options to stash him until about now, we'd be raking the FO over the coals for losing this can't-miss prospect. Jesse Lund at Twinkie Town called for him to be added to the 40-man at the time.
I dislike MLB's punitive approach to signing 16-year olds from outside the US, and therefore I refuse to fault the Twins for Polanco's minor-league options.