By balancing out strengths and weaknesses between players, you can greatly increase the probability of success of your team. When it comes to business, founders often hire people that are similar to them, when in fact they should be doing the exact opposite. Leaders should always master their strengths, and outsource their weaknesses. When developing a team inside a business, it's best to have many different types of personalities, so that all aspects of business leadership are covered. Would you hire 3 mediocre quarterbacks to try to win the Super Bowl? Of course not!