In Knowledge Management terms, one of the things it can learn about is the practice of "Learning before Doing".
Secondly you need ruthless self-analysis. As a team, you need to know how you perform, and where your weak spots are, so you can work on them. Business is a ruthless game, but the purpose of a team is to draw out the best from all its members, and you need to know how to do this. So don't be worried if this self-analysis identifies weaknesses, so long as you have a plan to work on those weaknesses.