Just realized the way I worded it was unclear. I did not give out 45 minutes of homework for them per day, it was that I had 45 minutes to do everything I needed to do per day outside of classroom instruction if I wanted a 40 hr work week. Homework is the easiest to get rid of, and more and more schools are doing just that, even though independent practice is critical for learning.

I'd love to see a shift to top rated lectures viewed at home, and classroom time as a time for "homework" where students work to practice the topics of the lecture with the assistance of the teacher to patch up holes in understanding. Leveraging this methodology with some automatic grading, and I think teaching would be a better experience. Granted, this requires the students to do the lectures at home which has a whole slew of problems.