The primary task when considering Paul's assertion, “the husband is the head of the wife,” should be discovering the meaning of this head-and-body metaphor, not arguing for an extended metaphorical sense of half of the metaphor—the single word, "head."
This article has shown that the Gen 3:15 Edenic covenant began in the Garden with the woman. It was then initially fulfilled with Deborah and Jael in Judg 4 and 5. Indeed, the Jael story actualizes the Gen 3:15 promise.
Cleansing the Bible of counter-cultural female roles not only masculinizes history, it also deprives women of a broader picture of how God has and might use women and their gifts in church, home, and society.
Explorations of Genesis 2 intent on recovering God's ideal for the interrelationship between male and female often zoom in on the creation of Eve. We are better able to appreciate how the narrative supports that ideal when we engage the whole chapter.