Much has been said and written about how President Obama differs from his predecessor in the oval office in both substance and style. These distinctions were highlighted yesterday when President Obama candidly admitted "I screwed up" in the cabinet nominations he had made. He acknowledged that his selections hadn't been in keeping with the spirit of the pledges he had made during the presidential campaign.

Leaders of any kind often face dilemmas when they, or the people who work for them, make mistakes. President Bush himself admitted that he had a difficult time articulating the mistakes he had made in office. While admitting mistakes can make a leader seem flawed and vulnerable, it can also make a leader come across as self-critical and willing to learn.

Some great business leaders, like Michael Dell, founder of the computer company that bears his name, set an example for self-criticism by engaging executive coaches and sharing the feedback they receive. Not only did Dell disclose that he was being coached in order to improve his performance as a leader, he even shared the criticisms he had gotten from the people who work for him. Demonstrating this level of humility and self-reflection sets a great example for others in the organization to solicit input and feedback in order to learn from, and avoid repeating, mistakes.