If business schools are to consistently produce outstanding ethical leaders, they should not only focus on teaching ethics in the right way and living up to the right honor code, as Aine Donovan writes. They also need to do a much better job of filtering the people they invite into their exclusive cadres. I say this as an executive search consultant who has interviewed thousands of MBAs all over the world, and hired and trained hundreds (in addition, I’ve worked with business schools on their admissions processes).