1) Maybe. I remember an associate professor years ago who applied for a job teaching English in Aspen, Colorado. It would have meant a considerably larger paych

1) Maybe. I remember an associate professor years ago who applied for a job teaching English in Aspen, Colorado. It would have meant a considerably larger paycheck than he got at the university. It would also have definitely taken him out of the academic world he aspired to. However, the size of the school system must have been vastly smaller than San Francisco's. 2. Yes, but good teachers? My impression from childhood, matched by what I could see of my son's experience, was that one can expect to have a good teacher every other year in the primary grades, and that the mix of good and bad doesn't change that much in middle and secondary schools when one has different teachers for different subjects. 3) 45% seems pretty steep to me.