Sorry for taking so long to respond and write this. To start off I'd like to address some negatives and positives I've found in an Elvis Andrus trade. First the Positives
It's no secret that the Twins probably aren't willing to dish out a 9 figure, 10 year deal to the likes of Carlos Correa or Trevor Story. Behind those, the options to fill in as a bridge to get to our youngsters is slim pickings. An Elvis Andrus trade would do just that. Andrus has spent 13 years in the majors, and is only 33. In this 13 years he as had two all star appearances and owns a .272 batting average. Another positive is his injury history, or lack thereof. For comparison Josh Donaldson has been in the league for 9 years. During those nine years he has spent 207 days in the injured list. Andrus, on the other had has only spend 115 games on the injured list, the majority of which came from an elbow injury; he spent 63 days on the il.
It has been reported that the Athletics are looking to ship away some of their key pieces. It's not really a stretch of the imagination that they'd be looking to move on from an older shortstop who is on the downward side of his prime. That being said, the cost of acquiring his services should be decently low. The twins should be able to move a non top 150 prospect in order to aquire him. I think a guy like Chris Vallimont or Cole Sands would be enough.
Remember, this move isn't about being competitive. Yes, I know he's older and his stats are on the decline, but we only need him until Lewis and/or Martin are ready for the bigs.