If you believe that "building the best teams means compiling the best people" you may be "dead wrong." 

Google outlines "the five key characteristics of enhanced teams" as

  1. Dependability. Team members get things done on time and meet expectations.
  2. Structure and clarity. High performing teams have clear goals, plan and have well-defined roles within the group.
  3. Meaning. The work has personal significance to each member.
  4. Impact. The group believes their work is purposeful and positively impacts the greater good.

and most importantly: Psychological Safety! See below.