It was a warm Italian night as I sat on a terrace with a friend, sipping a good glass of tasty white wine. A friend’s friend joined us, we introduced ourselves and I learned he was a manager in tech, just like me. After a few minutes of talking about our experiences, he shot me a sharp question: What is the most important attribute of a successful manager? I had never thought about it before, so I was surprised when I saw my uncertainty last less than 5 seconds. My guts took control of my brain and spoke for me. Self-Confidence – I said. “Now I have to articulate the…