After landing his invasion forces on the shores of some country, the sixteenth-century Spanish conquistador Hernan Cortes would immediately burn his own boats. He was sending his army a message: "We can't turn back. Either we succeed here or we die here." Excuses were not an option.
I'd say handling people is the most important thing you can do as a coach. I've found every time I've gotten into trouble with a player, it's because I wasn't talking to him enough.
When I work a game as an analyst, all I do is look at the game like a coach. Why was something successful? What makes it work? I just try to use my expertise and whatever insight I have to the game.
Remember this. Bear Bryant retired at age 69, and he died 28 days after he stopped coaching. If you don't have something, and a purpose in your life, you're gonna die.
Teamwork is the foundation of success. The three universal questions that an individual asks of his coach, player, employee, employer are: Can I trust you? Are you committed to excellence? And, do you care about me?