Who's on First?

When filly, Rachel Alexandra, won the Kentucky Oaks by 20 lengths, she was ridden by Calvin Borel. The next day, Borel rode Mine That Bird to an incredible upset victory in the Kentucky Derby. (I just watched the replay on the Kentucky Derby website, and it was a phenomonal effort. Mine That Bird was dead last, by several lengths, for a good part of the race). Anyway, the day after the Kentucky Oaks race, Rachel Alexandra was sold. The new owners of Rachel Alexandra have entered her in the Preakness, which runs tomorrow. Borel has decided to switch back to the filly, leaving Mine That Bird, THE KENTUCKY DERBY WINNER, to last minute jockey, Mike Smith! I don't know what to think of this. Borel had said that if he had to choose, he would choose RA. Plus, he has won 5 races on her, I think. More than anything, though, his choice tells me that Borel thinks Rachel Alexandra has a better chance than Mine That Bird in the Preakness.