I believe that as a leader, as you gain knowledge and perspective, your core beliefs will remain intact along with your new vision. For example, General McChrystal still states that “There are a set of standards that you know are right” and that you shouldn’t deviate from those standards. This was his belief at twenty years of age and he still holds onto to that belief presently.
Obviously, as we move forward in our careers, some personal beliefs and ideas will evolve with our knowledge and experience. In General McChrystal’s personal case, he does acknowledge that as a younger man he spent too much time on decision making