Callie Brownson breaks glass ceiling in college football coaching ranks

As an assistant at Dartmouth, Callie Brownson is the first full-time female football coach in Division I history.

(CNN)As a woman working in a male-dominated field, Callie Brownson isn't a stranger to the word "no." But since getting a "yes," her ascension has been swift.

Less than a week before Dartmouth's first football game of the season, head coach Buddy Teevens hired Brownson as an offensive quality control coach, making her the first full-time female football coach at the NCAA Division I level.