That people are even questioning the value of a person's input based on their sex is a form of subconscious discrimination. The title of this thread - 'Do female executives drive start-up success?' - is a polemic, dichotomous question, inferring a yes/no response. To invert the scenario, it would be intriguing to see the voracity of comments harnessed from an article entitled 'Do male executives drive start-up failure?' - rather absurd, oui?
I leave you with this thought - diversity, in all its forms, is a strength in business and in life.