Google has spent years, collected tons of data, and invested millions trying to better understand its people. One of its most prolific projects, Project Aristotle, aimed to crack the code on what makes a team super effective.

Google's big question: Why do some teams excel while others flop?

Becoming a successful manager is no cakewalk. It involves working both sides of your brain to manage tasks and lead people. That means building trust with team members and continuously improving oneself. So, what are the qualities that make a successful manager? Let's revisit classic Google research that still stands the test of time. In 2009, Google launched Project Oxygen with the intention of developing better bosses.