Policies cannot do what they are intended to do without adequate political support and that requires trust. Trust that policymakers will not only make good policy but that, over time, they will remain vigilant, not complacent, and they will be flexible, always willing to get in there, root around in the basement, climb up and look into the attic. Fix what needs fixing.
Update what needs updating. As Governor of the Bank of Mexico it has been my firsthand experience that the community of financial policymakers of the most relevant countries has taken the lessons learned from this crisis to heart.