Burroughs as a lefty and Carson has a power bat should potentially have the edge.
Dozier and Florimon were at AA last year other than Florimon's September callup, and Chang, while possible, still is not proven at AAA either. Casilla is the other shortstop on the team who can move over if Carroll is ever hurt or pinch something for (probably doubtful), and if Casilla is out mid-game (more doubtful), then Plouffe can be the emergency SS. Calling up one of these three or Nishioka can then happen for the next game.
If both Nishioka and Hughes are not on the 25-man roster, the Twins need middle infielders so Dozier, Chang, Florimon should be in the list. At least one of them will be in the majors as the bench middle infielder
I honestly don't know how anyone has hicks in the top 3 anymore, the Top 2 are unanimous (Sano and Rosario) with Arcia holding a firm grip on #3. After 3 It could go anywhere. also think Pat Dean is too high for such a bad season.