Seemed clear Gardenhire wasn't happy about it. And why would he be? Trading established players for prospects doesn't exactly help a lame duck manager.
Are you sure? Yes, Gardy not having an extension in place beyond 2013 is superficially ominous (for him, anyway), but reconsider the other factors in play.
Nobody, least of all the Twins front office, expects the Twins to win in 2013. The word 'rebuilding' is bad for ticket sales, but we all knew that's what it is when Span was traded. Gardenhire was (rightly) not held significantly accountable for lousy 2011 and 2012 seasons that were less clearly rebuild years, so why would 96 losses in a 2013 season that definitely is a rebuilder get him fired?
So you can take it as a positive about his character that upon hearing of the loss of Revere, he's more upset about losing more games in 2013 than he is relieved that his job may be more secure due to low win expectations. Or you can take it as a negative that he's not sharp enough to see, at the moment of the comment at least, that he won't be held accountable for another bad season.
My guess is that he knows his paycheck, if not his role, is secure as a soldier in the Pohlad family. He really likes managing but won't be crushed if he gets moved to a new 'job'. He doesn't like losing, but he was even more upset at the prospect of watching either a lesser veteran than Span, or a rookie, toil in center all year. And I think he hates bad defense and poor fundamentals even more than he dislikes losing.
That, and I think he dislikes umpires more than losing, too.