I think our criterion is our experience. I would use the example of the conversion to IFR standards.
Speaking personally, my background experience includes the managing of a very large dairy organization in Canada as chief operating officer and president. I'm very familiar with the management of reviews of budgets and financial statements and so forth, but I have absolutely no expertise related to the conversion of systems within an organization. Hence we determined that all three board members felt themselves to be exactly in the same position and that we needed support, and we sought that support.