I realize that, despite the title, this article focuses on the backups. But for me, deciding on the big pieces comes before deciding on who fits in as the bench players. At starting shortstop Polanco was a pleasant surprise for me with his defense, but he's still somewhere between only acceptable and average. Unlike some, I believe in his bat despite a subpar 2017. But it wouldn't be a shocking development if the front office took some sort of aggressive step to improve the defense there. It's a cliche to be strong up the middle, but cliches come from somewhere. In a matchup to either World Series team this year, the Twins would be weak by comparison at that spot. With a stronger starting SS, maybe both Escobar and Adrianza aren't needed on the 25-man, opening a spot for a more defensively-limited big bat.