Farmer will regress to the mean about as certainly as Correa. He’s a starter for a second division club and a valuable bench piece for a contender. Having him available to start against lefties and fill in at three positions is really valuable. If Lewis is healthy (sure appears to be!), he’s the third baseman.
I will believe Buxton in center field when I see it. We’re past “mid May” and AFAIK he’s not even started to prep to play in the field. An injury to Taylor might get that particular ball rolling, but it might not happen this season.
I doubt the Twins trade major league talent to acquire bullpen help. If they get a guy or two, I would expect they part with prospects, probably from A ball or below at the deadline.