According to PrawfsBlawg: Things to ask (or not to ask) your new prawfs, someone actually asked newly minted Prof. Leib,
“Professor Leib, many of us are concerned that you’ve never taught a day in your life. What do you have to say about that?”
It’s a really dumb question. First, because it’s too late to do anything about it. Second, because new teachers are sometimes at their best — fresh with new ideas from practice or the academy, full of energy, innocent of the mind-numbing horrors of faculty meetings.
Then, again, some of us improve. I think (hope) I probably teach better now than when I started (and I had a tiny amount of pre-law school teaching experience), in part because I have a slightly more realistic sense of how much (little) can be accomplished in a semester. Perhaps it’s all reversion towards the mean.