"Overmentored and undersponsored" really resonated with me for two reasons - first, there aren't that many women in a position to act as sponsors (either as CEOs or angels), and second, because it's hard to ask someone to go all-in on you.
Women tend to showboat less than men, and want to let their work speak for itself. Unfortunately, it's never going to speak as loudly as an ace self-promoter.