I would think he'd stay. The Yankees can't afford to lose him or the money from Texas. Also, I don't think Betemit is anything more than a utility guy.
Betemit could probably play as an everyday player, but obviously there would be plenty of other people that would be available.
FTW, I have heard that the Orioles would like to keep Tejada, but have him move to third base. Does that make Melvin Mora available?
