Not real sure why Oakland would have an interest in this guy. He is a former A's & I do not put much into his '08 season.
For a couple reasons:
1 - Holliday has a big contract and is walking, one way or the other, when the season is over.
2 - St. Louis has wanted Holliday for a while. In order to obtain him they might need to dangle Ludwick. The A's would be shedding salary for a player that they control until he is in his mid-30's and only paying arbitration numbers. If he doesn't do great, they don't pay as much. If he does really well he becomes a great trading chip to load up on prospects.
This has Billy Bean written all over it.