Thirty years ago a young Seiji Ozawa learned to conduct as director of the Toronto Symphony. Now the orchestra has hired another inexperienced conductor in Peter Oundjian. “More than three decades later, we have a right to ask whether our orchestra should still be a learning opportunity for a relatively inexperienced maestro. Ozawa, as things transpired, turned out to be a quick study. But San Francisco and Boston, his next cities of residence, reaped most of the dividends.”