Who was the best leader you ever had?

I have had the pleasure to work with and learn from many inspiring leaders whom I look up to. Here are certain traits I found really great about them:

1. Unconventional Approach: A professor of mine always advocated unconventional approaches to make us think by pushing us outside our comfort zones. He ended up being one of the favourite professors for almost all the students who came after me and were taught by him before me.
2. A Space for Autonomy: Another amazing leader always understood the kind of space I needed to autonomously work from and ensured I received all the support I required in the meanwhile to get things accomplished.
3. Role- modelling: Another leader always inspired me by going beyond his way to support me and push my thinking.