History is filled with examples of teams of underdogs that unexpectedly go on to accomplish great results. Conversely, there are examples of seemingly great teams filled with stars that fail to meet expectations.
The difference is leadership. Effective leaders are focused both on getting the right people AND getting people right. Getting people right is taking existing talent and getting the most out of them by challenging each team member differently and leveraging their collective strengths. John Wooden won 10 NCAA basketball championships in 12 years, not just by recruiting the best players, but also by getting the most out of them. How many times have we seen the number one draft choice in professional sports fail?
Leadership almost always trumps talent. Empowered leaders get their people right and experience more success.