I'm not sure that's true. What if Baltimore was willing to give up Dylan Bundy? With Rosario, Santana and Polanco, the Twins should get decent production from second base after Dozier is gone and Bundy could anchor a rotation for years. Not saying that would happen but that's the type of trade the Twins would have to make and it wouldn't greatly affect the time table of the Sano/Buxton/Meyer foundation. But they shouldn't trade Dozier for a low A prospect, IMHO.
I wouldn't trade him for Bundy. Aside from further delaying The Next Winning Twins Team, I don't think its fair value, and ... its not 2012 anymore. The Twins have restocked the cupboard with front of the rotation pitching talents (granted some of them are still in the low minors). I wouldn't trade a cornerstone guy for one more at this point.