Today’s Washington Post article titled, “Romney wins big in Arizona, AP says” begins with the following sentence:
Former Massachusetts governor Mitt Romney was headed for a decisive victory in Arizona Tuesday night, where he had the support of the state’s governor, Jan Brewer, and a sizable contingent of Mormon voters.
I am interested in why it isn’t “Mitt Romney headed for a decisive victory,” in the active voice as “Romney wins big in Arizona.”
If I put it “Romney headed for a victory,” am I making a serious grammatical error?

