Treasury chief Martin Parkinson's recent announcement that Australia's top economic agency would adopt a long-term target of making 40% of senior executives women was big news, but perhaps not before time. The movement of women into top leadership roles in Australian organisations has been excruciatingly slow. And there's no single silver bullet solution, insists outspoken blogger Jen Dalitz, the globally recognised SheEO of gender balance consultancy sphinxx. To mark International Women's Day, Dalitz – who advises and mentors leadership teams at many of Australia's largest companies – explores some of the controversial equalising issues, including quotas and mandatory reporting, and the undermining proliferation of unconscious bias.