Remember, teamwork begins by building trust. And the only way to do that is to overcome our need for invulnerability. - Patrick Lencioni

If you ask me, the best thing that's happened in the last year is that we've almost become a jackass-free zone. No matter what happens, and what challenge we might face, give me a roomful of people who aren't jackasses, and I'll be happy to take it on.

I must admit that some people are better at being team players, at embracing those five behaviors, than others. They're not born that way, but either through life experiences, work history, or a real commitment to personal development, they come to possess the three underlying virtues that enable them to be ideal team players: they are humble, hungry, and smart. As simple as those words may appear, none of them is exactly what they seem. Understanding the nuances of these virtues is critical for applying them effectively.

At the heart of vulnerability lies the willingness of people to abandon their pride and their fear, to sacrifice their egos for the collective good of the team. While this can be a little threatening and uncomfortable at first, ultimately it becomes liberating for people who are tired of spending time and energy overthinking their actions and managing interpersonal politics at work.