If the Twins think he's peaked, then they should be trading him. Another year of solid production like this season would make him immensely valuable in the trade market, but if the Twins think he's peaked, I'd get what I could get b/c even now he'd probably fetch a pretty decent prospect, particularly if the Twins were targeting a LF prospect, which tend to be more plentiful. That said, from what I understand, Santana's defense still needs quite a bit of work, and while he hit quite well, I think the guy more likely to have had a fluke season at this point is Santana, not Escobar. To be clear I think Santana has the higher ceiling and is the long term answer, but as of right now, I'm somewhat convinced that the best course of action might be to put Santana in AAA to start the year. Let him work on his defense, and if he continues to play well, they can trade Escobar after 2015 or at the deadline.