The 00s Twins were able to achieve some success with Kubel and Cuddy plodding around in the corners. That was considered a hitters park. TF, in case anyone forgot, has the exact same dimensions. The left field power alley, for example, is still shorter than the ones in Cincinnati or Arlington. The right field alley is still shorter than the ones at the Cell in Chicago or Miller Park.
And, most of us would agree, I think, that the OF defense improved after Schafer replaced Willingham, and again when Hicks was called up on Sept 2 and started spelling Parmelee/Arcia. However the BABIP and ERA has gone pretty much unchanged since that time.
At some point we need to accept that the roster just isn't that athletic. But they can hit. Get the best hitters into the lineup, I say, and shave off the runs by positioning them better.