Just catching up with the Links page, and it seems that a lot of change is afoot at SFB:   http://www.sfchronicle.com/performance/article/Feijoo-taking-her-final-steps-at-SF-Ballet-11065862.php   "Feijoo arrived here 18 years ago, and her retirement is yet another indication that the San Francisco Ballet is evolving rather dramatically these days. Consider that Vanessa Zahorian and husband Davit Karapetyan are also leaving this spring, while at least a half-dozen other princi