Whenever I facilitate a meeting, I am inevitably asked, "So how do we compare to other teams you work with?" I typically dodge the answer because all teams are different - although they are largely a reflection of the team's leadership. If the leader is constructive, then the team is too. If the leader is passive-aggressive, so goes the team. So what are the traits of a strong team leader? I have always had my suspicions, but I just ran across some McKinsey & Company research that highlights four core leadership behaviors that are most relevant on the front line.