Pat Reusse suggests that the Twins may deal Denard Span and Francisco Liriano. Both of these moves have been talked about before and make some sense.
The Twins now have Ben Revere slated to play left field. But his best position is center field, where his defensive prowess makes his offense less critical. That makes Span expendable in some ways. Where Span isn't easily replaceable is in his role as leadoff hitter. The Twins do not really have anyone else with his combination of skills.
One of things that gives Span value is that the Twins have him under contract through 2015 (including an expensive option). That makes him a lot more valuable as trade bait. Closer to Chuck Knoblauch than Johan Santana. If the Twins can get a quality starter in return, they would probably be willing to let Span go. That possibility would make their continued pursuit of Cuddyer and Kubel after signing Willingham more understandable.
Liriano is a tougher sell. He is a free agent after next season, so the Twins interest in moving him is understandable. The real issue is whether they can get anything of value in return. I think this would have to mostly be a salary dump for whatever they can get. I doubt the Twins are going to go there.