Jason Kubel is eminently tradeable

I've been sitting on this lately. I didn't want to mention it because with the Christmas holiday, it was a time for togetherness and love. Now that Christmas is over, I'm going to bitch about it.
From LENIII at the Star Trib:

Haven’t heard anything new about their interest in the Cubs’ Mark DeRosa. For the Twins to land DeRosa, they probably would need a third team involved because the Cubs need a left-handed hitting outfielder and the Twins’ aren’t moving Jason Kubel

Now, I understand not wanting to trade Kubel for DeRosa. DeRosa wouldn't seem to be much return for a young slugger like Kubel. The problem I have is the insinuation that the Twins aren't willing to trade Kubel period. In my opinion, Kubel should be the MIST tradeable asset the Twins have.
Let's review:
Left handed slugger on a team that, if the roster stands as is, will have 5 other players that can bat from the left side. And those are the starters.
Mediocre fielding outfielder in a line up that has no intention of playing Denard Span every day, and one of the few righties, Delmon Young, in left when the manager doesn't want him in the field.
A still manageable contract.
In summary, as spare parts go, Kubel is the sparest. Not to mention that, he has talents that could be enticing to prospective trade partners, as well as the youth and contract that are often valuable commodities these days. It astounds me, really, that Kubel isn't involved in more rumors.