I remember the first day I was a supervisor. I had been friends with the people I was now going to supervise. That moment that I crossed the threshold from coworker to supervisor, the view my friends had of me changed. It wasn't that I changed. I hadn't even had the chance to change. It was that they began to see me differently, as a threat, or an outsider. That was the moment I vowed that I would learn all I could about managing and leading others...