John Maxwell shares an excellent article on the “power of teams”

http://johnmaxwellcompany.com/blog/how-to-lead-a-team-create-better-leaders

The Power of Teams — Your leaders need teams. The truth is that teamwork is at the heart of great achievement. The Law of Significance says that one is too small a number to achieve greatness.  The beauty of teams is that when your leaders invest in others, they’re investing in their own ability to achieve the results they want. After all, teamwork makes the dream work.

1. Teams involve more people, thus affording more resources, ideas, and energy than could any individual.

2. Teams maximize a leader’s potential and minimize her weaknesses. Strengths and weaknesses are more exposed in individuals.

3. Teams provide multiple perspectives on how to lead a team or reach a goal, thus devising several alternatives for each situation. Individual insight is seldom as broad and deep as a group’s when it takes on a problem.

4. Teams share the credit for victories and the blame for losses. This fosters genuine humility and authentic community. Individuals take the credit and blame alone. This fosters destructive pride and sometimes a sense of failure.

5. Teams keep leaders accountable for the goal. Individuals connected to no one can change the goal without accountability.

6. Teams can simply do more than an individual.