I agree that Willi Castro shouldn't be Backup A in center field. I'd love to see the Twins pick up one of the Cardinals excess outfielders. I particularly think Dylan Carlson would be a good fit for the Twins.
Miranda can be optioned next year, so unless he is traded, I would think he'll at least be in the organization. Coming off his strong season in '23, I would expect Castro to return, but I agree that Farmer is on thin ice as far as remaining on the Twins for the coming season. I think Austin Martin figures into the bench player discussion and he does add contact and speed, two things lacking in the current team.
Moran is left handed and breathing, so I think the Twins will go the extra mile with him, although last season was extremely disappointing. Sands and Winder have moved from starting options to low-leverage multi-inning relief pitchers. Their place on the 40-man roster should be in jeopardy. I don't know about options remaining, but if either is out of options, that lessens their value considerably. Fangraphs says all three of these guys have one more option year, so they all could be candidates for the "St. Paul Shuttle".
I have speculated that the Twins will keep Varland in Minneapolis as a multi-inning reliever if he doesn't make the five-man rotation out of Spring Training. If the Twins acquire a veteran pitcher for the rotation, I think he starts 2024 in the major league bullpen.