I'm in business development because I love to compete and win. But, I don't win them all. Could that be a good thing for my development and skill set? This is a great article on how failure might be a key marker for future success.
But failure can also act as a marker for future success. One mechanism by which this may occur is the “screening” effect: if early failure screens out those who are less likely to succeed, then those who can survive failure may have characteristics that make them more likely to succeed than those who have only experienced winning.