Benedict XVI is the first pope to retire in nearly 600 years ; he says age is a factor . Former New York Gov . George Pataki retired after three terms and did n't seek a fourth . Comment: '' Experts say succession plans are key to smooth transitions and a positive legacy .
Benedict XVI is the first pope to retire in nearly 600 years ; he says age is a factor . Former New York Gov . George Pataki retired after three terms and did n't seek a fourth . Pataki : `` I was never going to let my public title become my personal identity '' Experts say succession plans are key to smooth transitions and a positive legacy .