The Dodgers are still searching for the big bat. They didn't find it in Victorino or Ramirez (whatever else they may have found), and thus Sands returns to the majors. They are still also looking for the #2 pitcher, which they have also not found. Blanton looks to be a serviceable #4 or #5. What this goes to prove is that even when you have the money to spend such talents are not readily available.
What they now have is a good team, a playoff team (given the expansion), but they are far from a WS team. So, Sands looks good in AAA, and the Dodgers have to bring him up. He has some experience at 1st base, but no one has yet commented on the quality of his performance there.