Smackdown really just didn't have enough people.
Christian jumped to TNA.
Eddie Guerrero (who was originally supposed to win the belt) passed.
JBL and Orton haven't caught on.
Undertaker only seems to wrestle every few months or so. He doesn't maintain the schedule needed of a champion right now.
Angle is a logical choice, given the events of New Year's Revolution. With a newly crowned heel champion on Raw, there wouldn't be too much room left for Angle. But the lack of talent on SD right now gives him plenty of room to step in and keep things going. A rare smart move by WWE.
There is though, one other person that an argument could be made for: Rey Mysterio. While small by WWE standards he's got the talent and charisma to carry the championship. It wouldn't hurt SD to experiment by putting the strap on Rey for a while. That'd be nice.
